RE: [PHP] Array help.

[Ford, Mike]

> From: Paul Halliday [paul.halli...@gmail.com]
> Sent: 24 October 2012 18:38
> To: PHP-General
> Subject: [PHP] Array help.
> 
> $groupMappings = array('40' =>'A','41' =>'B','1' =>'C');
> 
> $ocTest = explode(".", $ip);
> $groupKeys = array_keys($groupMappings);
> $groupTest = array_search("$ocTest[2]", $groupKeys);
> 
> if($groupTest != FALSE) {

I think you're making a little bit of a meal of this. My initial thoughts
included pointing you at array_key_exists() (and, why on earth
have you got $ocTest[2] in quotes?), but then I realised if I were
writing this I'd probably just use isset(), thus:

   $ocTest = explode(".", $ip);
   if (isset($groupMappings[$ocTest[2]])):
  // success
   else:
  // fail
   endif;

Hope this helps!


Cheers!

Mike

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Re: [PHP] Array help.

[Paul Halliday]

On Wed, Oct 24, 2012 at 2:40 PM, Samuel Lopes Grigolato
 wrote:
> Could you try changing this:
>
> if($groupTest != FALSE) {
>
> to this:
>
> if($groupTest !== FALSE) {
>
> ?

Hah. Perfect! Thanks.

>
> -Mensagem original-
> De: Paul Halliday [mailto:paul.halli...@gmail.com]
> Enviada em: quarta-feira, 24 de outubro de 2012 15:38
> Para: PHP-General
> Assunto: [PHP] Array help.
>
> I am processing v4IP's and what I want to do is a prefix substitution if the
> 3rd octet matches a predefined list $groupMappings. I went down this  path
> and it isn't working as expected. Drawing a blank on this one. Why does 40
> miss the comparison?
>
> $hostname = "Z";
> $ips = array('10.1.40.1','10.1.41.1','10.1.1.1','10.1.40.1','10.9.1.1');
>
> foreach ($ips as $ip) {
>
> $groupMappings = array('40' =>'A','41' =>'B','1' =>'C');
>
> $ocTest = explode(".", $ip);
> $groupKeys = array_keys($groupMappings);
> $groupTest = array_search("$ocTest[2]", $groupKeys);
>
> if($groupTest != FALSE) {
> $hostGroup = $groupMappings[$groupKeys[$groupTest]];
> echo "Hit! $ip : $hostname : $hostGroup\n";
> } else {
> $hostGroup = substr($hostname, 0,2);
> echo "Miss! $ip : $hostname : $hostGroup\n";
> }
> }
>
> Miss! 10.1.40.1 : Z : Z
> Hit! 10.1.41.1 : Z : B
> Hit! 10.1.1.1 : Z : C
> Miss! 10.1.40.1 : Z : Z
> Hit! 10.9.1.1 : Z : C
>
> Thanks!
>
> --
> Paul Halliday
> http://www.pintumbler.org/
>
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>
>

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Re: [PHP] Array & unset()

[Ashley Sheridan]

Ken Robinson  wrote:

>At 08:50 PM 9/23/2012, Ron Piggott wrote:
>
>>I am wondering if there is a way to remove from
>>an array where the value is 0 (“zero”)
>>
>>Array example:
>>
>>$total_points_awarded = array(  1 => 17, 3 => 14, 4 => 0, 5 => 1, 6 =>
>0 );
>>
>>In this example I would like to remove element # 4 and # 6.
>>
>>The “key” ( 1,3,4,5,6 ) represents the
>>member’s account #.  It is an auto_increment value in a mySQL table
>>The “value” ( 17,14,0,1,0 ) represents their score.
>>
>>The application for this is a list of the top
>>users.  If someone has 0 points I don’t want to include them.
>>
>>Any thoughts?  Any help is appreciated.
>
>Look at array_filter()  ... http://php.net/array_filter
>
>$total_points_awarded = array(  1 => 17, 3 => 14, 4 => 0, 5 => 1, 6 =>
>0 );
>print_r(array_filter($total_points_awarded));
>
>
>Ken
>
>
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Wouldn't it be far easier to do this at the database level in the query?

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Re: [PHP] Array & unset()

[Ken Robinson]

At 08:50 PM 9/23/2012, Ron Piggott wrote:

I am wondering if there is a way to remove from 
an array where the value is 0 (“zero”)


Array example:

$total_points_awarded = array(  1 => 17, 3 => 14, 4 => 0, 5 => 1, 6 => 0 );

In this example I would like to remove element # 4 and # 6.

The “key” ( 1,3,4,5,6 ) represents the 
member’s account #.  It is an auto_increment value in a mySQL table

The “value” ( 17,14,0,1,0 ) represents their score.

The application for this is a list of the top 
users.  If someone has 0 points I don’t want to include them.


Any thoughts?  Any help is appreciated.


Look at array_filter()  ... http://php.net/array_filter

 17, 3 => 14, 4 => 0, 5 => 1, 6 => 0 );
print_r(array_filter($total_points_awarded));


Ken 



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Re: [PHP] array

[Govinda]

>> how can you explain someone in a simplest and everyday use example of ARRAY.
> 
> The manual page explains it pretty succinctly. I don't think you'll get
> more simple than this, as there is obvious prerequisite knowledge
> assumed (i.e. that you know what a simple variable is, etc)

Hi saeed,

Ash means this:

http://www.php.net/manual/en/language.types.array.php

See the examples in grey-colored boxes.

Arrays are just a collection of things.  Similar to when you assign one 
variable one value.. well with an array you assign many variables one value 
each.  But the reason you use an "array" is that instead of a bunch of separate 
variables, you want those variables to be part of a collection..  i.e. all 
those variables have something in common.. like for example you might use one 
array to describe the parts of a car, and another array to describe all the 
fruits in your kitchen.

You could do this:  (all separate independent variables)

$part1 = 'spark plug';
$part2 = 'rear-view mirror';
$part3 = 'steering wheel';
etc.

$fruit1 = 'apple';
$fruit2 = 'banana';
$fruit3 = 'orange';
etc.

...but (depending on your application, and the logic you use), it might make 
more sense to do something like this instead: (make arrays!)

(these, below, are arrays where the key is just a number which is automatically 
assigned.  You can also use another syntax (see the manual) to make arrays 
where you generate your own custom keys, and those keys can be strings instead 
of numbers.)

$arrParts = array('spark plug', 'rear-view mirror', 'steering wheel');

$arrFruits = array('apple', 'banana', 'orange');


To use the arrays, there are tons of functions:

http://www.php.net/manual/en/ref.array.php

:-)

-Govinda
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Re: [PHP] array

[Ashley Sheridan]

On Sat, 2011-12-31 at 14:53 +0100, saeed ahmed wrote:

> how can you explain someone in a simplest and everyday use example of ARRAY.
> 


The manual page explains it pretty succinctly. I don't think you'll get
more simple than this, as there is obvious prerequisite knowledge
assumed (i.e. that you know what a simple variable is, etc)
-- 
Thanks,
Ash
http://www.ashleysheridan.co.uk

Re: [PHP] Array has `trailing comma`, why not the same for function parameter list?

[Daniel Brown]

On Sun, Oct 30, 2011 at 08:47, Nam Gi VU  wrote:
> It is convenient to have a trailing comma when defining an array - so as
> easy to add/remove code to add/remove an entry to the array
>
> array(
>    'key00' => 'value00',
>    'key01' => 'value01',
>    'key02' => 'value02',
>    ...
> )
>
> I suggest to PHP Development team to make it available in the syntax to
> have a leading comma
> array(
>    ...
>    , 'key00' => 'value00'
>    , 'key01' => 'value01'
>    , 'key02' => 'value02'
> )
> in such way, we can thought of the leading commas as the list bulletings.
>
> And the same things would be lovely to be applied also to function
> parameter list. I don't see why not :)
>
> What do you thing about my suggestion? Hope to hear from you!

    For feature requests such as this, please discuss it on the
Internals list (CC'd on this email) and suggest it via the bug tracker
at https://bugs.php.net/ (with the bug type as a "Feature/Change
Request").

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Re: [PHP] Array has `trailing comma`, why not the same for function parameter list?

[Jeremiah Dodds]

On Sun, Oct 30, 2011 at 8:47 AM, Nam Gi VU  wrote:
> It is convenient to have a trailing comma when defining an array - so as
> easy to add/remove code to add/remove an entry to the array
>
> array(
>    'key00' => 'value00',
>    'key01' => 'value01',
>    'key02' => 'value02',
>    ...
> )
>
> I suggest to PHP Development team to make it available in the syntax to
> have a leading comma
> array(
>    ...
>    , 'key00' => 'value00'
>    , 'key01' => 'value01'
>    , 'key02' => 'value02'
> )
> in such way, we can thought of the leading commas as the list bulletings.
>
> And the same things would be lovely to be applied also to function
> parameter list. I don't see why not :)
>
> What do you thing about my suggestion? Hope to hear from you!
>

WRT functions: while I could see how this would seem like a good idea
because of the symmetry in what's going on at a very high level of
abstraction, I would be against including it in a language. I don't
particularly like it for arrays, but it does make it easy to add items
into an array, which happens pretty often in development, especially
when writing exploratory code. Function signatures, on the other hand,
probably aren't changing nearly as often.

 At the very least, I wouldn't want to encourage people to make
functions with many parameters, as it's normally a sign of poor
design. This wouldn't explicitly do so, but would do so implicitly as
it's only real purpose is to make it easier to add things.

As far as the supporting-a-leading-comma thing goes, I'm pretty
ambivalent on it. I don't really like the style outside of Haskell
code, but that's just a preference.

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Re: [PHP] array problem

[Ashley Sheridan]

You are echoing out an array. If you use something like print_r() or var_dump() 
you will see the array elements
Thanks,
Ash
http://www.ashleysheridan.co.uk
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Marc Fromm  wrote:

I am reading a csv file into an array. The csv file.

users.csv file contents:
w12345678,a
w23456789,b
w34567890,c

$csvfilename = "users.csv";
$handle = fopen($csvfilename, "r");
if($handle) {
while (($line = fgetcsv($handle, 1000, ",")) !== FALSE) {
$arrUsers[] = $line;
}
fclose($handle);
}

When I echo out the elements in the elements in the array $arrUsers I get:
Array
Array
Array

foreach ($arrUsers as $user){
echo $user . "";
}

I can't figure out why the word Array is replacing the actual data.

Re: [PHP] array problem

[Adam Balogh]

hi,

try to use print_r or var_dump to echo compound data type

Re: [PHP] array problem

[Steve Staples]

On Fri, 2011-09-09 at 16:00 +, Marc Fromm wrote:
> I am reading a csv file into an array. The csv file.
> 
> users.csv file contents:
> w12345678,a
> w23456789,b
> w34567890,c
> 
> $csvfilename = "users.csv";
> $handle = fopen($csvfilename, "r");
> if($handle) {
> while (($line = 
> fgetcsv($handle, 1000, ",")) !== FALSE) {
> $arrUsers[] = 
> $line;
> }
> fclose($handle);
> }
> 
> When I echo out the elements in the elements in the array $arrUsers I get:
> Array
> Array
> Array
> 
> foreach ($arrUsers as $user){
> echo $user . "";
> }
> 
> I can't figure out why the word Array is replacing the actual data.
> 

Try print_r($arrUsers);

also, the $line is an array of the CSV, so you're storing an array,
within the array $arrUsers.

foreach ($arrUsers as $user){
foreach ($user as $val) {
echo $val . "";
}
echo '';
}


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Re: [PHP] array problem

[Joshua Stoutenburg]

The function fgetcsv() returns an array.

http://php.net/manual/en/function.fgetcsv.php


On Fri, Sep 9, 2011 at 9:00 AM, Marc Fromm  wrote:

> I am reading a csv file into an array. The csv file.
>
> users.csv file contents:
> w12345678,a
> w23456789,b
> w34567890,c
>
>$csvfilename = "users.csv";
> $handle = fopen($csvfilename, "r");
>if($handle) {
>while (($line =
> fgetcsv($handle, 1000, ",")) !== FALSE) {
>$arrUsers[]
> = $line;
>}
>fclose($handle);
>}
>
> When I echo out the elements in the elements in the array $arrUsers I get:
> Array
> Array
> Array
>
> foreach ($arrUsers as $user){
>echo $user . "";
> }
>
> I can't figure out why the word Array is replacing the actual data.
>
>

Re: [PHP] Array from one form to other?

[Tamara Temple]

On Feb 20, 2011, at 10:51 AM, Yogesh wrote:

I don't entirely understand this; Dan Brown gave you solution to use  
curl to pass the array to the second "form" (do you mean script  
here?). That would certainly work, but I'm wondering if it wouldn't  
be more secure to spool out the array to a file from the first  
script after it has processed it, and then read it in to the second  
script when it starts. This assumes the two scripts are running on  
the same server, of course. The second script could be called after  
the first script finishes by using a header redirect. I'm curious  
about people's thought on the security and efficacy of different  
ways of sharing data between scripts when you're not using sessions.



I am quite new to PHP. (I am having trouble to understand how HTML,  
PHP and Javascript work together). Right now I just wanted to get  
the job done. But if you can suggest me a more efficient way to do  
it, I will definitely look into it.


Are you also new to programming in general? If so, I suggest spending  
some time studying up on programming concepts and design patterns. I  
do understand the idea of "just get the job done", but without basic  
knowledge, the result is not going to be very good, and likely lead to  
maintenance nightmares down the road.


As I don't really understand what it is you're trying to do, it's hard  
to make concrete suggestions. From your very brief description, it  
sounds like you have one script that takes the form submission and  
populates an array, which you want to share with another script.  
Typically, data sharing between scripts is accomplished in a few  
different ways:


1) use of session variables (which requires the script to invoke  
session management)


B) storing the information in a persistent data base (e.g. MySQL)

iii) storing the information in a transient data store (e.g. a  
temporary file). There are different ways to format the data in the  
file, including as php script (so you can include the file), JSON,  
YAML, etc.


d) passing the information to the second script via a query string or  
a post data buffer


Any of these things require understanding of the mechanisms and  
implementation idioms involved. Choosing a particular implementation  
depends on several variables in your overall design and implementation  
environment. A mailing list is a poor way to transmit this  
information, which is why most of it is documented elsewhere. 

Re: [PHP] Array from one form to other?

[Yogesh]

Hi Tamara,


I don't entirely understand this; Dan Brown gave you solution to use curl to
>> pass the array to the second "form" (do you mean script here?). That would
>> certainly work, but I'm wondering if it wouldn't be more secure to spool out
>> the array to a file from the first script after it has processed it, and
>> then read it in to the second script when it starts. This assumes the two
>> scripts are running on the same server, of course. The second script could
>> be called after the first script finishes by using a header redirect. I'm
>> curious about people's thought on the security and efficacy of different
>> ways of sharing data between scripts when you're not using sessions.
>
>
>
I am quite new to PHP. (I am having trouble to understand how HTML, PHP and
Javascript work together). Right now I just wanted to get the job done. But
if you can suggest me a more efficient way to do it, I will definitely look
into it.

Thanks,

-Yogesh

Re: [PHP] Array from one form to other?

[Tamara Temple]

On Feb 19, 2011, at 6:38 PM, Yogesh wrote:
I have two forms. One form helps read an input file into an array.  
And the

other form needs this array as an input.
I am able to read the input file into an array, but how do I pass it  
over to

the other form.

Both forms have PHP file as 'action'.


I don't entirely understand this; Dan Brown gave you solution to use  
curl to pass the array to the second "form" (do you mean script  
here?). That would certainly work, but I'm wondering if it wouldn't be  
more secure to spool out the array to a file from the first script  
after it has processed it, and then read it in to the second script  
when it starts. This assumes the two scripts are running on the same  
server, of course. The second script could be called after the first  
script finishes by using a header redirect. I'm curious about people's  
thought on the security and efficacy of different ways of sharing data  
between scripts when you're not using sessions.




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Re: [PHP] Array from one form to other?

[Daniel Brown]

On Sat, Feb 19, 2011 at 21:50, Yogesh  wrote:
> POST

Use cURL, look into curl_setopt(), and add square brackets (and
optional key names) to your array.  A quick start:



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Re: [PHP] Array from one form to other?

[Yogesh]

POST





On Sat, Feb 19, 2011 at 9:44 PM, Daniel Brown  wrote:

> On Sat, Feb 19, 2011 at 19:38, Yogesh  wrote:
> > Hello,
> >
> > I have two forms. One form helps read an input file into an array. And
> the
> > other form needs this array as an input.
> > I am able to read the input file into an array, but how do I pass it over
> to
> > the other form.
> >
> > Both forms have PHP file as 'action'.
>
> What's the method?  GET or POST?
>
> --
> 
> Network Infrastructure Manager
> Documentation, Webmaster Teams
> http://www.php.net/
>

Re: [PHP] Array from one form to other?

[Daniel Brown]

On Sat, Feb 19, 2011 at 19:38, Yogesh  wrote:
> Hello,
>
> I have two forms. One form helps read an input file into an array. And the
> other form needs this array as an input.
> I am able to read the input file into an array, but how do I pass it over to
> the other form.
>
> Both forms have PHP file as 'action'.

What's the method?  GET or POST?

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Re: [PHP] array to var - with different name

[Donovan Brooke]

Donovan Brooke wrote:
[snip]

if ($t_ok) {

}



Small correction.. with my established naming convention.. the above 
ideally would be:

> if ($b_ok) {
>
> }


D

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Re: [PHP] array to var - with different name

[Donovan Brooke]

Paul M Foster wrote:
[snip]

Shawn, I don't know if I have a good reason, other than I rather like
working with string vars instead of array vars from $_REQUEST for
(sticky forms and conditionals). I can check/verify them as well in the
process.


You should probably get used to dealing with the array variables.
However, you can also look at the extract() function. It won't do
exactly what you want, but it will pull the array keys/values into the
current symbol table. Use with caution (note the second parameter to the
function).

Paul



Well, It occurs to me that you can't code in PHP without getting use to 
dealing with arrays. ;-)


I just much rather like typing:



Instead of:



or

if ($t_ok) {

}

instead of:
if ($_GET['f_ok']) {

}

Save's a lot of typing time as far as I can tell.

Donovan





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Re: [PHP] array to var - with different name

[Paul M Foster]

On Thu, Jan 20, 2011 at 05:29:01PM -0600, Donovan Brooke wrote:


[snip]

> 
> 
> Shawn, I don't know if I have a good reason, other than I rather like
> working with string vars instead of array vars from $_REQUEST for
> (sticky forms and conditionals). I can check/verify them as well in the
> process.

You should probably get used to dealing with the array variables.
However, you can also look at the extract() function. It won't do
exactly what you want, but it will pull the array keys/values into the
current symbol table. Use with caution (note the second parameter to the
function).

Paul

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RE: [PHP] array to var - with different name

[Tommy Pham]

> -Original Message-
> From: Donovan Brooke [mailto:li...@euca.us]
> Sent: Thursday, January 20, 2011 3:29 PM
> Cc: php-general@lists.php.net
> Subject: Re: [PHP] array to var - with different name
> 
> Tommy Pham wrote:
> [snip]
> >> foreach ($_REQUEST as $key =>  $value) $$key = $value;
> >>
> >> short-circuited one-liners :)
> >>
> >> Regards,
> >> Tommy
> >>
> >
> > akk... wrong clicked before I had a chance to fix the code. anyway,
> >
> > foreach ($_GET as $key =>  $value) if (substr($key, 0, 2) == 'f_')
> > ${'t_'.substr($key, 2)} = $value;
> 
> 
> Tommy, excellent.. I had just rewrote your first suggestion:
> 
> foreach ($a_formvars as $key => $value) ${str_replace('f_', 't_',$key)} =
> $value;
> 
> (which works)
> but I like that you are only affecting the vars that *begin* with $match. I
> suppose the above would also work with $_REQUEST.
> 
> 
> 
> Shawn, I don't know if I have a good reason, other than I rather like
> working with string vars instead of array vars from $_REQUEST for
> (sticky forms and conditionals). I can check/verify them as well in the
> process.
> 
> Thanks to all that posted.. I always learn from the "skin the cat" game.
> 
> Donovan
> 
> 
> --
> D Brooke
> 

I advice strongly against str_replace if you're looking specifically 'f_' at 
the __beginning__ of the string.  substr would guarantee it.

Regards,
Tommy




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Re: [PHP] array to var - with different name

[Donovan Brooke]

Tommy Pham wrote:
[snip]

foreach ($_REQUEST as $key =>  $value) $$key = $value;

short-circuited one-liners :)

Regards,
Tommy



akk... wrong clicked before I had a chance to fix the code. anyway,

foreach ($_GET as $key =>  $value) if (substr($key, 0, 2) == 'f_')
${'t_'.substr($key, 2)} = $value;



Tommy, excellent.. I had just rewrote your first suggestion:

foreach ($a_formvars as $key => $value) ${str_replace('f_', 't_',$key)} 
= $value;


(which works)
but I like that you are only affecting the vars that *begin* with 
$match. I suppose the above would also work with $_REQUEST.




Shawn, I don't know if I have a good reason, other than I rather like
working with string vars instead of array vars from $_REQUEST for
(sticky forms and conditionals). I can check/verify them as well in the 
process.


Thanks to all that posted.. I always learn from the "skin the cat" game.

Donovan



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Re: [PHP] array to var - with different name

[Tommy Pham]

On Thu, Jan 20, 2011 at 3:09 PM, Tommy Pham  wrote:
> On Thu, Jan 20, 2011 at 2:28 PM, Donovan Brooke wrote:
>> Hello again!
>>
>> I'm trying to find a good way to convert array key/value's to
>> variable name values... but with the caveat of the name being
>> slightly different than the original key
>> (to fit my naming conventions).
>>
>> first, I (tediously) did this:
>>
>> ---
>> if (isset($_GET['f_action'])) {
>>  $t_action = $_GET['f_action'];
>> }
>>
>> if (isset($_POST['f_action'])) {
>>  $t_action = $_POST['f_action'];
>> }
>>
>> if (isset($_GET['f_ap'])) {
>>  $t_ap = $_GET['f_ap'];
>> }
>>
>> if (isset($_POST['f_ap'])) {
>>  $t_ap = $_POST['f_ap'];
>> }
>> ---
>>
>> Instead, I wanted to find *all* incoming "f_" keys in the POST/GET array,
>> and convert them to a variable name consisting of "t_" in one statement.
>>
>> I then did this test and it appears to work (sorry for email line breaks):
>>
>> -
>> $a_formvars = array('f_1' => '1','f_2' => '2','f_3' => '3','f_4' =>
>> '4','f_5' => '5','f_6' => '6',);
>>
>> $t_string = "";
>> foreach ($a_formvars as $key => $value) {
>>  if (substr($key,0,2) == 'f_') {
>>    $t_string = $t_string . "t_" . substr($key,2) . "=$value&";
>>    parse_str($t_string);
>>  }
>> }
>> -
>>
>> I figure I can adapt the above by doing something like:
>>
>> $a_formvars = array_merge($_POST,$_GET);
>>
>> However, I thought I'd check with you all to see if there is something
>> I'm missing. I don't speak PHP that well and there may be an easier way.
>>
>> Thanks,
>> Donovan
>>
>>
>> --
>> D Brooke
>>
>
> foreach ($_GET as $key => $value) $$key = $value;
> foreach ($_POST as $key => $value) $$key = $value;
>
> or
>
> foreach ($_REQUEST as $key => $value) $$key = $value;
>
> short-circuited one-liners :)
>
> Regards,
> Tommy
>

akk... wrong clicked before I had a chance to fix the code. anyway,

foreach ($_GET as $key => $value) if (substr($key, 0, 2) == 'f_')
${'t_'.substr($key, 2)} = $value;

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Re: [PHP] array to var - with different name

[Tommy Pham]

On Thu, Jan 20, 2011 at 2:28 PM, Donovan Brooke wrote:
> Hello again!
>
> I'm trying to find a good way to convert array key/value's to
> variable name values... but with the caveat of the name being
> slightly different than the original key
> (to fit my naming conventions).
>
> first, I (tediously) did this:
>
> ---
> if (isset($_GET['f_action'])) {
>  $t_action = $_GET['f_action'];
> }
>
> if (isset($_POST['f_action'])) {
>  $t_action = $_POST['f_action'];
> }
>
> if (isset($_GET['f_ap'])) {
>  $t_ap = $_GET['f_ap'];
> }
>
> if (isset($_POST['f_ap'])) {
>  $t_ap = $_POST['f_ap'];
> }
> ---
>
> Instead, I wanted to find *all* incoming "f_" keys in the POST/GET array,
> and convert them to a variable name consisting of "t_" in one statement.
>
> I then did this test and it appears to work (sorry for email line breaks):
>
> -
> $a_formvars = array('f_1' => '1','f_2' => '2','f_3' => '3','f_4' =>
> '4','f_5' => '5','f_6' => '6',);
>
> $t_string = "";
> foreach ($a_formvars as $key => $value) {
>  if (substr($key,0,2) == 'f_') {
>    $t_string = $t_string . "t_" . substr($key,2) . "=$value&";
>    parse_str($t_string);
>  }
> }
> -
>
> I figure I can adapt the above by doing something like:
>
> $a_formvars = array_merge($_POST,$_GET);
>
> However, I thought I'd check with you all to see if there is something
> I'm missing. I don't speak PHP that well and there may be an easier way.
>
> Thanks,
> Donovan
>
>
> --
> D Brooke
>

foreach ($_GET as $key => $value) $$key = $value;
foreach ($_POST as $key => $value) $$key = $value;

or

foreach ($_REQUEST as $key => $value) $$key = $value;

short-circuited one-liners :)

Regards,
Tommy

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Re: [PHP] array to var - with different name

[Daniel Molina Wegener]

On Thursday 20 January 2011,
Donovan Brooke  wrote:

> Hello again!
> 
> I'm trying to find a good way to convert array key/value's to
> variable name values... but with the caveat of the name being
> slightly different than the original key
> (to fit my naming conventions).
> 
> first, I (tediously) did this:
> 
> ---
> if (isset($_GET['f_action'])) {
>$t_action = $_GET['f_action'];
> }
> 
> if (isset($_POST['f_action'])) {
>$t_action = $_POST['f_action'];
> }
> 
> if (isset($_GET['f_ap'])) {
>$t_ap = $_GET['f_ap'];
> }
> 
> if (isset($_POST['f_ap'])) {
>$t_ap = $_POST['f_ap'];
> }
> ---
> 
> Instead, I wanted to find *all* incoming "f_" keys in the POST/GET
> array, and convert them to a variable name consisting of "t_" in one
> statement.

  That was ver tedious...

> 
> I then did this test and it appears to work (sorry for email line
> breaks):
> 
> -
> $a_formvars = array('f_1' => '1','f_2' => '2','f_3' => '3','f_4' =>
> '4','f_5' => '5','f_6' => '6',);
> 
> $t_string = "";
> foreach ($a_formvars as $key => $value) {
>if (substr($key,0,2) == 'f_') {
>  $t_string = $t_string . "t_" . substr($key,2) . "=$value&";
>  parse_str($t_string);
>}
> }
> -
> 
> I figure I can adapt the above by doing something like:
> 
> $a_formvars = array_merge($_POST,$_GET);
> 
> However, I thought I'd check with you all to see if there is something
> I'm missing. I don't speak PHP that well and there may be an easier way.

  Did you tried the $_REQUEST variable?

  Take a look on:

  

> 
> Thanks,
> Donovan

Best regards,
-- 
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System Programmer & Web Developer
Phone: +56 (2) 979-0277 | Blog: http://coder.cl/

Re: [PHP] Array Symbol Suggestion

[David Harkness]

On Thu, Jan 13, 2011 at 10:07 AM, David Hutto  wrote:

> On Thu, Jan 13, 2011 at 12:59 PM, David Harkness
> > I learned it early on as well, and I never really liked it. Instead of
> > $iFish I would prefer a more descriptive name such as $fishCount.
>
> What info did you get on hook for the client?
>

The brain is so interesting. I have no idea where $iFish came from. I've
never done an application even remotely related to fishing or the fishing
industry. Not even a fish-based game. :)

David

Re: [PHP] Array Symbol Suggestion

[David Hutto]

On Thu, Jan 13, 2011 at 12:59 PM, David Harkness
 wrote:
> On Thu, Jan 13, 2011 at 2:23 AM, Richard Quadling wrote:
>
>> The Hungarian Notation [1] was what I was taught all those years ago
>> when I learnt standard C programming.
>
>
> I learned it early on as well, and I never really liked it. Instead of
> $iFish I would prefer a more descriptive name such as $fishCount.


What info did you get on hook for the client?



Sure, it's
> a little longer to type, but it tells you what that number measures. In
> today's world of objects and loosely-typed languages, a descriptive variable
> name can be more important than a symbol or notation to hint at the type.
>
> As for arrays, I always name the variable plural. And if it maps keys to
> values instead of holding a list of items, I will typically name it
> $foosByBar, e.g. $customersById. From that name I *know* it's array
> already--no need for a prefix or special symbol.
>
> $oPlayer, $sName, $iWidth...what's the point? The context in which the
> variable is used can provide more meaning. If you stick to short
> functions/methods that do one specific thing, you'll be able to tell that
> $player is an object, $name is a string, and $width is an integer.
>
> I highly recommend the book Clean Code: A Handbook of Agile
> Software Craftsmanship by Robert C. Martin. [1] It has a lot of great advice
> on keeping your code easy to understand, test, and maintain.
>
> David
>
> [1]
> http://www.amazon.com/Clean-Code-Handbook-Software-Craftsmanship/dp/0132350882
>



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Re: [PHP] Array Symbol Suggestion

[David Harkness]

On Thu, Jan 13, 2011 at 2:23 AM, Richard Quadling wrote:

> The Hungarian Notation [1] was what I was taught all those years ago
> when I learnt standard C programming.


I learned it early on as well, and I never really liked it. Instead of
$iFish I would prefer a more descriptive name such as $fishCount. Sure, it's
a little longer to type, but it tells you what that number measures. In
today's world of objects and loosely-typed languages, a descriptive variable
name can be more important than a symbol or notation to hint at the type.

As for arrays, I always name the variable plural. And if it maps keys to
values instead of holding a list of items, I will typically name it
$foosByBar, e.g. $customersById. From that name I *know* it's array
already--no need for a prefix or special symbol.

$oPlayer, $sName, $iWidth...what's the point? The context in which the
variable is used can provide more meaning. If you stick to short
functions/methods that do one specific thing, you'll be able to tell that
$player is an object, $name is a string, and $width is an integer.

I highly recommend the book Clean Code: A Handbook of Agile
Software Craftsmanship by Robert C. Martin. [1] It has a lot of great advice
on keeping your code easy to understand, test, and maintain.

David

[1]
http://www.amazon.com/Clean-Code-Handbook-Software-Craftsmanship/dp/0132350882

Re: [PHP] Array Symbol Suggestion

[Richard Quadling]

On 12 January 2011 20:23,   wrote:
> Thanks for all the responses to my suggestion.  I realize this would be a 
> major change, so that's why I also mentioned it as an addition to the 
> language.
>
> I'm sure it's just what you're used to, but still being new to all this, it 
> just makes sense (to me anyway) to have different symbols for different 
> variable types:
> $scalar
> @array
> #hash
>
> Since the @ sign is already reserved, maybe there's another symbol that would 
> work better?  I don't know.  These are just ideas that I came up with while 
> reading and I thought I'd throw it out there to see what others thought.
>
> I like the idea of a naming convention, so that's what I'll do in my scripts. 
>  I also appreciate the heads up on is_string(), is_array(), and var_dump().
>
> Thanks again,
> Marc

PHP recently introduced namespaces to PHP5. One of the issues at the
time was the namespace separator. Do to all the common symbols already
being used, it was necessary to re-use one and the context dictates
its intent.

So whilst "\n" is the newline character, in the namespace string below

namespace my\namespaces\are\here;

the \n is not a newline.

With that, there are no common symbols available.



The Hungarian Notation [1] was what I was taught all those years ago
when I learnt standard C programming. I've kept that with me through
to PHP. Some say it is redundant in PHP. I suppose this is true, but
it works for me and doesn't really get in the way.

One thing to remember though is that PHP is a loosely typed language.
Having a mechanism which would somehow enforce the type based upon a
symbol would certainly be a different way of working for PHP.

This is mentioned in the [2] and is suggested to be a poor way of
working due to the lack of symbols in general.


Regards,

Richard.

[1] http://en.wikipedia.org/wiki/Hungarian_notation
[2] http://en.wikipedia.org/wiki/Hungarian_notation#Relation_to_sigils
-- 
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Twitter : EE : Zend
@RQuadling : e-e.com/M_248814.html : bit.ly/9O8vFY

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Re: [PHP] Array Symbol Suggestion

[Per Jessen]

Donovan Brooke wrote:

> however, from my experience, there is often this kind of problem in
> any language, and that is where naming conventions come in very handy.
> 
> I don't know if the PHP community has any standard convention.. 

One popular naming convention:

http://en.wikipedia.org/wiki/Hungarian_notation



-- 
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Re: [PHP] Array Symbol Suggestion

[Per Jessen]

Ashley Sheridan wrote:

> On Wed, 2011-01-12 at 12:23 -0800, sono...@fannullone.us wrote:
> 
>> Thanks for all the responses to my suggestion.  I realize this would
>> be a major change, so that's why I also mentioned it as an addition
>> to the language.
>> 
>> I'm sure it's just what you're used to, but still being new to all
>> this, it just makes sense (to me anyway) to have different symbols
>> for different variable types: $scalar @array
>> #hash
>> 
>> Since the @ sign is already reserved, maybe there's another symbol
>> that would work better?  I don't know.  These are just ideas that I
>> came up with while reading and I thought I'd throw it out there to
>> see what others thought.
>> 
>> I like the idea of a naming convention, so that's what I'll do in my
>> scripts.  I also appreciate the heads up on is_string(), is_array(),
>> and var_dump().
>> 
>> Thanks again,
>> Marc
> 
> 
> If you check out the manual pages for those functions as well, you'll
> see other related functions. I must say, of any language I've used,
> the php.net documentation is by far the best, giving plenty of
> information and user comments too. It's a resource I still can't do
> without, and I reckon even the old hands on this list would say the
> same.

Yes, I wouldn't want to be without my local php.net mirror.  Other
languages that can easily match the quality of the documentation -
assembler, C and C++, to name a few. 


-- 
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Re: [PHP] Array Symbol Suggestion

[Daniel Brown]

On Wed, Jan 12, 2011 at 15:41, Michael Shadle  wrote:
> On Wed, Jan 12, 2011 at 12:37 PM, Daniel Brown  wrote:
>
>>    The @ is an error control operator, used to buffer the output and
>> store it in a variable - $php_errormsg.  There's no way that would be
>> changed to become an array designator (though that doesn't mean your
>> idea itself is a bad one).
>
> @ squelches error messages.
>
> AFAIK $php_errormsg is the last error that PHP incurred. not based on "@"

Correct.  The way I worded it makes it sound like @ is what
populates the variable, which would be incorrect.  Plus, I should also
mention that $php_errormsg is only available if you enable
track_errors anyway, which (if I remember correctly) is off by
default.

Thanks for pointing that out, Mike.

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Re: [PHP] Array Symbol Suggestion

[Michael Shadle]

On Wed, Jan 12, 2011 at 12:37 PM, Daniel Brown  wrote:

>    The @ is an error control operator, used to buffer the output and
> store it in a variable - $php_errormsg.  There's no way that would be
> changed to become an array designator (though that doesn't mean your
> idea itself is a bad one).

@ squelches error messages.

AFAIK $php_errormsg is the last error that PHP incurred. not based on "@"

"@" just silences the errors from being reported, which is a "bad
thing" as error collection is done even if error_reporting is off, it
is still built internally as a string, that's why developing with
E_ALL and E_STRICT even on is the best practice. even notices wind up
adding to the internal error/etc. string stack.

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Re: [PHP] Array Symbol Suggestion

[Daniel Brown]

On Wed, Jan 12, 2011 at 14:45,   wrote:
> I'd like to make a suggestion for a change, or possibly an addition, to the 
> PHP language.
>
> I'm learning PHP and have been very excited with what it can do in relation 
> to HTML.  But when I got to the part about arrays, I was disappointed to see 
> that they are designated with a $ the same as other variables.  I was 
> learning Perl before I switched, and it uses the @ sign to designate an 
> array.  That makes it a lot simpler to see at a glance what is an array and 
> what isn't - at least for beginners like me.
>
> Has there been any talk of adopting the @ sign for arrays in PHP?  Or is that 
> symbol used for something else that I haven't read about yet?

The @ is an error control operator, used to buffer the output and
store it in a variable - $php_errormsg.  There's no way that would be
changed to become an array designator (though that doesn't mean your
idea itself is a bad one).

> What is the proper channel for making suggestions like this?

Usually on the Internals mailing list (intern...@lists.php.net) or
as a Feature Request in the bug tracker (http://bugs.php.net/).

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Re: [PHP] Array Symbol Suggestion

[Joshua Kehn]

On Jan 12, 2011, at 3:28 PM, Ashley Sheridan wrote:

> If you check out the manual pages for those functions as well, you'll
> see other related functions. I must say, of any language I've used, the
> php.net documentation is by far the best, giving plenty of information
> and user comments too. It's a resource I still can't do without, and I
> reckon even the old hands on this list would say the same.
> 
> 
> Thanks,
> Ash
> http://www.ashleysheridan.co.uk
> 
> 

I fully agree with you on php.net being some of the best documentation out 
there.

I would say that a lot of the Java documentation is wonderfully done as well. 
It doesn't offer user comments, but it is very complete and covers just about 
every aspect of a class.

Regards,

-Josh

Joshua Kehn | josh.k...@gmail.com
http://joshuakehn.com


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Re: [PHP] Array Symbol Suggestion

[Joshua Kehn]

On Jan 12, 2011, at 3:23 PM, sono...@fannullone.us wrote:

> Thanks for all the responses to my suggestion.  I realize this would be a 
> major change, so that's why I also mentioned it as an addition to the 
> language.
> 
> I'm sure it's just what you're used to, but still being new to all this, it 
> just makes sense (to me anyway) to have different symbols for different 
> variable types:
> $scalar
> @array
> #hash
> 
> Since the @ sign is already reserved, maybe there's another symbol that would 
> work better?  I don't know.  These are just ideas that I came up with while 
> reading and I thought I'd throw it out there to see what others thought.
> 
> I like the idea of a naming convention, so that's what I'll do in my scripts. 
>  I also appreciate the heads up on is_string(), is_array(), and var_dump().
> 
> Thanks again,
> Marc
> --
> PHP General Mailing List (http://www.php.net/)
> To unsubscribe, visit: http://www.php.net/unsub.php
> 

This would make sense to me for a compiled or strongly typed language, but no 
other language (that I've know of) uses this format. I haven't used Perl.

In a dynamically typed language you normally have duck typed variables.

# Python
a = "Hello"
b = 12

// JavaScript
a = "Hello";
b = 12;
c = [1, 2, 3];

// PHP
$a = "Hello";
$b = 12;
$c = array(1, 2, 3);

Unless I'm misunderstanding the question?

Regards,

-Josh

Joshua Kehn | josh.k...@gmail.com
http://joshuakehn.com


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Re: [PHP] Array Symbol Suggestion

[Ashley Sheridan]

On Wed, 2011-01-12 at 12:23 -0800, sono...@fannullone.us wrote:

> Thanks for all the responses to my suggestion.  I realize this would be a 
> major change, so that's why I also mentioned it as an addition to the 
> language.
> 
> I'm sure it's just what you're used to, but still being new to all this, it 
> just makes sense (to me anyway) to have different symbols for different 
> variable types:
> $scalar
> @array
> #hash
> 
> Since the @ sign is already reserved, maybe there's another symbol that would 
> work better?  I don't know.  These are just ideas that I came up with while 
> reading and I thought I'd throw it out there to see what others thought.
> 
> I like the idea of a naming convention, so that's what I'll do in my scripts. 
>  I also appreciate the heads up on is_string(), is_array(), and var_dump().
> 
> Thanks again,
> Marc


If you check out the manual pages for those functions as well, you'll
see other related functions. I must say, of any language I've used, the
php.net documentation is by far the best, giving plenty of information
and user comments too. It's a resource I still can't do without, and I
reckon even the old hands on this list would say the same.


Thanks,
Ash
http://www.ashleysheridan.co.uk

Re: [PHP] Array Symbol Suggestion

[sono-io]

Thanks for all the responses to my suggestion.  I realize this would be a major 
change, so that's why I also mentioned it as an addition to the language.

I'm sure it's just what you're used to, but still being new to all this, it 
just makes sense (to me anyway) to have different symbols for different 
variable types:
$scalar
@array
#hash

Since the @ sign is already reserved, maybe there's another symbol that would 
work better?  I don't know.  These are just ideas that I came up with while 
reading and I thought I'd throw it out there to see what others thought.

I like the idea of a naming convention, so that's what I'll do in my scripts.  
I also appreciate the heads up on is_string(), is_array(), and var_dump().

Thanks again,
Marc
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Re: [PHP] Array Symbol Suggestion

[Steve Staples]

On Wed, 2011-01-12 at 20:58 +0100, Per Jessen wrote:
> sono...@fannullone.us wrote:
> 
> > I'd like to make a suggestion for a change, or possibly an addition,
> > to the PHP language.
> > 
> > I'm learning PHP and have been very excited with what it can do in
> > relation to HTML.  But when I got to the part about arrays, I was
> > disappointed to see that they are designated with a $ the same as
> > other variables.  I was learning Perl before I switched, and it uses
> > the @ sign to designate an array.  That makes it a lot simpler to see
> > at a glance what is an array and what isn't - at least for beginners
> > like me.
> > 
> > Has there been any talk of adopting the @ sign for arrays in PHP?  Or
> > is that symbol used for something else that I haven't read about yet?
> > 
> > What is the proper channel for making suggestions like this?
> 
> The php-development mailing list.  What you're suggesting is a pretty
> fundamental change, don't be disappointed if it is not met with
> universal approval.
> 
> 
> -- 
> Per Jessen, Zürich (5.9°C)
> 
> 
not to mention, the @ symbol is a reserved character... an error control
character[1].   So I dont think that using that char, would work.  I
dont see using it's own character to work at all, but in your own code,
you can use your own naming conventions to denote what is an array, and
what is a variable.

Good luck with your suggestion, I personally wouldn't like it (as I am
so used to the way it is now), but that is just me.


Steve.

[1] http://ca.php.net/manual/en/language.operators.errorcontrol.php


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Re: [PHP] Array Symbol Suggestion

[Ashley Sheridan]

On Wed, 2011-01-12 at 11:45 -0800, sono...@fannullone.us wrote:

> I'd like to make a suggestion for a change, or possibly an addition, to the 
> PHP language.
> 
> I'm learning PHP and have been very excited with what it can do in relation 
> to HTML.  But when I got to the part about arrays, I was disappointed to see 
> that they are designated with a $ the same as other variables.  I was 
> learning Perl before I switched, and it uses the @ sign to designate an 
> array.  That makes it a lot simpler to see at a glance what is an array and 
> what isn't - at least for beginners like me.
> 
> Has there been any talk of adopting the @ sign for arrays in PHP?  Or is that 
> symbol used for something else that I haven't read about yet?
> 
> What is the proper channel for making suggestions like this?
> 
> Thanks,
> Marc


PHP is a loosely typed language, so you can have a variable that,
throughout its lifetime in an app, is both a scaler (integer, string,
etc) or an array. For example:



There are functions you can use to determine the type of a variable,
such as is_string() and is_array() and you can use var_dump() in debug
statements to quickly see the type of a variable. I think changing
something as integral as a variable prefix would break a lot of code
which makes use of the loose typing, and would cause much more confusion
further down the line.

Also, as you may have guessed, the @ symbol is already in use at the
moment. In PHP it ensures that minor errors are silently ignored. For
example:

@executeSomeFunction()

would run that named function, but ignore any minor errors and warnings.
You'll typically find it used a lot in calls to mail() as that can be
flaky on some systems due to a number of factors outside of PHP.

Thanks,
Ash
http://www.ashleysheridan.co.uk

Re: [PHP] Array Symbol Suggestion

[Donovan Brooke]

sono...@fannullone.us wrote:

I'd like to make a suggestion for a change, or possibly an addition, to the PHP 
language.

I'm learning PHP and have been very excited with what it can do in relation to 
HTML.  But when I got to the part about arrays, I was disappointed to see that 
they are designated with a $ the same as other variables.  I was learning Perl 
before I switched, and it uses the @ sign to designate an array.  That makes it 
a lot simpler to see at a glance what is an array and what isn't - at least for 
beginners like me.

Has there been any talk of adopting the @ sign for arrays in PHP?  Or is that 
symbol used for something else that I haven't read about yet?

What is the proper channel for making suggestions like this?

Thanks,
Marc



Hi Marc,
I'm a PHP n00b as well and had similar thoughts regarding this..

just imagine two variables called the same thing.. a string and array.. 
and accidentally resetting one..


$oops = "something";

however, from my experience, there is often this kind of problem in
any language, and that is where naming conventions come in very handy.

I don't know if the PHP community has any standard convention.. but I
would suggest something like:

$a_foo  (for arrays)
$f_foo  (imploding into form variables)
$s_foo  (string variables)
$db_foo  (variables coming from databases perhaps)
etc..

This way, you'd never be confused of the origin of the variable.

Donovan



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Re: [PHP] Array Symbol Suggestion

[Per Jessen]

sono...@fannullone.us wrote:

> I'd like to make a suggestion for a change, or possibly an addition,
> to the PHP language.
> 
> I'm learning PHP and have been very excited with what it can do in
> relation to HTML.  But when I got to the part about arrays, I was
> disappointed to see that they are designated with a $ the same as
> other variables.  I was learning Perl before I switched, and it uses
> the @ sign to designate an array.  That makes it a lot simpler to see
> at a glance what is an array and what isn't - at least for beginners
> like me.
> 
> Has there been any talk of adopting the @ sign for arrays in PHP?  Or
> is that symbol used for something else that I haven't read about yet?
> 
> What is the proper channel for making suggestions like this?

The php-development mailing list.  What you're suggesting is a pretty
fundamental change, don't be disappointed if it is not met with
universal approval.


-- 
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Re: [PHP] array question

[Ravi Gehlot]

Jim Lucas has it. You can use the preg_match function to find it. I would
use regexp for that reason. regexp is good for making sure things are typed
the way they need to (mostly used for).

Ravi.


On Sat, Dec 18, 2010 at 5:17 PM, Jim Lucas  wrote:

> On 12/17/2010 12:52 PM, Sorin Buturugeanu wrote:
>
>> Hello all!
>>
>> I have a question regarding arrays and the way I can use a value.
>>
>> Let's say I have this string:
>>
>> $s = 'banana,apple,mellon,grape,nut,orange'
>>
>> I want to explode it, and get the third value. For this I would normally
>> do:
>>
>> $a = explode(',', $s);
>> echo $s[2];
>>
>> That's all fine, but is there a way to get the value directly, without
>> having to write another line in my script. I mean something like this:
>>
>> echo explode(',', $s)[2];
>>
>> or
>>
>> echo {explode(',', $s)}[2];
>>
>> I couldn't find out this answer anywhere, that's why I posted here.
>>
>> Cheers and thanks!
>>
>>
> Sure it CAN be done.  Nobody laugh too loud here... But...
>
> 
> $s = 'banana,apple,mellon,grape,nut,orange';
> echo preg_replace('/([^,]+,){3}([^,]+).*/', '$2', $s);
>
> ?>
> Outputs: grape
>
> The {3} part is equivalent to the array position.  Change that number, and
> you change which word will get displayed.
>
> Jim Lucas
>
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>
>

Re: [PHP] array question

[Jim Lucas]

On 12/17/2010 12:52 PM, Sorin Buturugeanu wrote:

Hello all!

I have a question regarding arrays and the way I can use a value.

Let's say I have this string:

$s = 'banana,apple,mellon,grape,nut,orange'

I want to explode it, and get the third value. For this I would normally do:

$a = explode(',', $s);
echo $s[2];

That's all fine, but is there a way to get the value directly, without
having to write another line in my script. I mean something like this:

echo explode(',', $s)[2];

or

echo {explode(',', $s)}[2];

I couldn't find out this answer anywhere, that's why I posted here.

Cheers and thanks!



Sure it CAN be done.  Nobody laugh too loud here... But...


Outputs: grape

The {3} part is equivalent to the array position.  Change that number, 
and you change which word will get displayed.


Jim Lucas

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Re: [PHP] array question

[Sorin Buturugeanu]

Tanks for all of your responses!

I guess a function is the way to go. I just have to see if the situation
comes up enough times to justify the function approach.

@Dan: I really enjoyed your disclaimer :D


--
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www.soin.ro

blog:
Despre Launch48 si ce poti face in 2 zile 



On 17 December 2010 23:48, Daniel Brown  wrote:

> On Fri, Dec 17, 2010 at 15:52, Sorin Buturugeanu  wrote:
> > Hello all!
> >
> > I have a question regarding arrays and the way I can use a value.
> >
> > Let's say I have this string:
> >
> > $s = 'banana,apple,mellon,grape,nut,orange'
> >
> > I want to explode it, and get the third value. For this I would normally
> do:
> >
> > $a = explode(',', $s);
> > echo $s[2];
> >
> > That's all fine, but is there a way to get the value directly, without
> > having to write another line in my script. I mean something like this:
> >
> > echo explode(',', $s)[2];
> >
> > or
> >
> > echo {explode(',', $s)}[2];
> >
> > I couldn't find out this answer anywhere, that's why I posted here.
>
> Unfortunately, no --- at least, not yet.  Chaining discussions
> come up now and again, so it's quite possible that future versions of
> PHP will have something similar.  That said, for now you could do
> something like this:
>
>  /**
>  * mixed return_item( string $car, mixed $pos )
>  *  - $str The original string
>  *  - $charThe delimiting character(s) by which to explode
>  *  - $pos The position to return
>  *  - $shift   Whether or not we should see 1 as the first array position
>  */
> function return_item($str,$char,$pos=null,$shift=false) {
>
>// Make sure $char exists in $str, return false if not.
>if (!strpos($str,$char)) return false;
>
>// Split $char by $str into the array $arr
>$arr = explode($char,$str);
>
>// If $pos undefined or null, return the whole array
>if (is_null($pos)) return $arr;
>
>// If $pos is an array, return the requested positions
>if (isset($pos) && is_array($pos) && !empty($pos)) {
>
>// Instantiate a second array container for return
>$ret = array();
>
>// Iterate
>foreach ($pos as $i) {
>
>// This is just in case it was given screwy or a number as
> a non-integer
>if (!is_int($i) && is_numeric($i)) $i = (int)round($i);
>
>// Make sure $i is now an integer and that position exists
>if (!is_int($i) || !isset($arr[$i]) || empty($arr[$i]))
> continue;
>
>// If all seems okay, append this to $ret
>$ret[] = $arr[$i];
>}
>
>// Return the array
>return $ret;
>}
>
>/**
>  * If $pos is a number (integer or round()'able number),
>  * we'll go ahead and make sure the position is there.
>  * If so, we'll return it.
>  */
>if (is_int($pos) || is_numeric($pos)) {
>
>// This is just in case it was given screwy or as a non-integer
>if (!is_int($pos)) $pos = (int)round($pos);
>
>// If we want to start the array count at 1, do that now
>if (isset($shift) && ($shift === true || $shift === 1)) {
>
>//  but only if the number isn't zero
>if ($pos !== 0) --$pos;
>
>}
>
>// Return the single position if it exists
>if (isset($arr[$pos]) && !empty($arr[$pos])) return $arr[$pos];
>}
>
>/**
> * If we've failed every case, something is either
> * wrong or we supplied bad data.  Return false.
> * Either way, feel free to add some trigger_error()
> * stuff here if you want to have the function hold
> * your hand.
> */
>return false;
> }
>
>
>
> /**
>  * Some simple examples
>  */
>
> $foo =
> 'apple,banana,carrot,orange,carrot,lettuce,tomato,beer,carrot,idiot';
>
> return_item($foo,',',7); // Returns 'beer'
> return_item($foo,'carrot',0); // Returns 'apple,banana,'
> return_item($foo,','); // Returns all items in an array
> return_item($foo,',',array(0,'2',6.6)); // Returns array: apple,carrot,beer
> return_item($foo,',',1,true); // Returns 'apple'
> ?>
>
>
>Of course, as with almost all code I submit here, it's typed
> directly into this window and is untested, so you use it at your own
> risk, your mileage may vary, see a doctor if you have an erection
> lasting more than four hours, et cetera.
>
>Happy Friday, all.
>
> --
> 
> Network Infrastructure Manager
> Documentation, Webmaster Teams
> http://www.php.net/
>
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>
>

Re: [PHP] array question

[Daniel Brown]

On Fri, Dec 17, 2010 at 15:52, Sorin Buturugeanu  wrote:
> Hello all!
>
> I have a question regarding arrays and the way I can use a value.
>
> Let's say I have this string:
>
> $s = 'banana,apple,mellon,grape,nut,orange'
>
> I want to explode it, and get the third value. For this I would normally do:
>
> $a = explode(',', $s);
> echo $s[2];
>
> That's all fine, but is there a way to get the value directly, without
> having to write another line in my script. I mean something like this:
>
> echo explode(',', $s)[2];
>
> or
>
> echo {explode(',', $s)}[2];
>
> I couldn't find out this answer anywhere, that's why I posted here.

Unfortunately, no --- at least, not yet.  Chaining discussions
come up now and again, so it's quite possible that future versions of
PHP will have something similar.  That said, for now you could do
something like this:




Of course, as with almost all code I submit here, it's typed
directly into this window and is untested, so you use it at your own
risk, your mileage may vary, see a doctor if you have an erection
lasting more than four hours, et cetera.

Happy Friday, all.

-- 

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Documentation, Webmaster Teams
http://www.php.net/

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RE: [PHP] array question

[Jay Blanchard]

[snip]
I have a question regarding arrays and the way I can use a value.

Let's say I have this string:

$s = 'banana,apple,mellon,grape,nut,orange'

I want to explode it, and get the third value. For this I would normally
do:

$a = explode(',', $s);
echo $s[2];

That's all fine, but is there a way to get the value directly, without
having to write another line in my script. I mean something like this:

echo explode(',', $s)[2];

or

echo {explode(',', $s)}[2];

I couldn't find out this answer anywhere, that's why I posted here.
[/snip]

Because the array is not formed until after the explode you cannot do it
with one command, but you could place 2 commands on one line :)

$a = explode(',', $s); echo $a[2];

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RE: [PHP] Array problem

[Bob McConnell]

From: Richard Quadling

> On 27 October 2010 22:15, Kevin Kinsey  wrote:
>> Marc Guay wrote:

 As Nicholas pointed out, the extra underscore in the key is the issue.
>>>
>>> That's way too easy a fix.  I think he should check to make sure his
>>> version of PHP was compiled with the right extensions and that the
>>> browser isn't doing something unpredictably bizarre when submitting
>>> the form.
>>
>> Just checked the card file, today's cause is: Sunspots.
> 
> I always believed that cosmic radiation was the cause.

I'll second the cosmic radiation. We are currently in the low activity portion 
of the 11 year sunspot cycle[1], and predictions of the next high are lower 
than most cycles recorded over the past century[2]. So that one is not an easy 
sell right now.

Bob McConnell

[1] 
[2] 

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Re: [PHP] Array problem

[Richard Quadling]

On 27 October 2010 22:15, Kevin Kinsey  wrote:
> Marc Guay wrote:
>>>
>>> As Nicholas pointed out, the extra underscore in the key is the issue.
>>
>> That's way too easy a fix.  I think he should check to make sure his
>> version of PHP was compiled with the right extensions and that the
>> browser isn't doing something unpredictably bizarre when submitting
>> the form.
>
> Just checked the card file, today's cause is: Sunspots.
>
> KDK
>

I always believed that cosmic radiation was the cause.


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Re: [PHP] Array problem

[Kevin Kinsey]

Marc Guay wrote:

As Nicholas pointed out, the extra underscore in the key is the issue.


That's way too easy a fix.  I think he should check to make sure his
version of PHP was compiled with the right extensions and that the
browser isn't doing something unpredictably bizarre when submitting
the form.


Just checked the card file, today's cause is: Sunspots.

KDK

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Re: [PHP] Array / form processing

[Sebastian Detert]

Ron Piggott schrieb:

I am writing a custom shopping cart that eventually the "cart" will be
uploaded to PayPal for payment.  I need to be able to include the option
that the purchase is a gift certificate.



At present my "add to cart" function goes like this:

===
# Gift Certificate: 1 is a gift; 2 is personal use

if ( $gift_certificate == "yes" ) {
$gift = 1;
} else {
$gift = 2;
}

$_SESSION['life_coaching_order'][$product][$gift]['quantity'] = 
$_SESSION['life_coaching_order'][$product][$gift]['quantity'] + 1;

===

Now I need to display the shopping cart contents.  I want to do this
through an array as the contents of the shopping cart are in a session
variable.  I start displaying the shopping cart contents by a "FOREACH"
loop:

===
foreach ($_SESSION['life_coaching_order'] AS $coaching_fee_theme_reference
=> $value ) {
===

What I need help with is that I don't know how to test the value of $gift
in the above array if it is a 1 or 2 (which symbolizes this is a gift
certificate).

I have something like this in mind:
if ( $_SESSION['life_coaching_order'] == 2 ) {

But I don't know how to access all the components of the array while I am
going through the FOREACH loop.

By using a "1" or "2" I have made gift certificates their own product.  If
you a better method I could use please provide me with this feedback.

Ron

The Verse of the Day
Encouragement from God's Word
www.TheVerseOfTheDay.info


  
First at all, I wouldn't use 1 or 2 for defining important informations. 
use something like

define('ORDER_GIFT', 1);
define('ORDER_PERSONAL',2);

If you want to check all values of your array you can use several 
foreach loops like


foreach ($_SESSION['life_coaching_order'] AS $coaching_product => $tmp_array)
{
 foreach ($tmp_array as $coaching_gift => $tmp_array2)
 {
   switch ($coaching_gift)
 case ORDER_GIFT: break;

 case ORDER_PERSONAL: break;
)
 } 
}



Personally I would prefer writing a class like

class Order
{
  private $product;
  private $gift;
  private $quantity;

  const ORDER_GIFT=1;
  const ORDER_PERSONAL=2;

 function getGift() {
   return $this -> gift;
 }
}

using

$_SESSION['life_coaching_order'][] = new Order();

foreach ( $_SESSION['life_coaching_order'] as $order )
{
 switch ( $order -> getGift() )

 case ORDER_GIFT: break;

 case ORDER_PERSONAL: break;
  
} 


I hope that will help you,

Sebastian
http://elygor.de


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Re: [PHP] Array / form processing

[chris h]

I don't know what the context is like, but you may be better off just using
an entire form here with hidden fields. i.e.


 
 
 



Without knowing what else is going on in your page, and how the request is
being handled on the server, it's kind of hard to give exact advice. :)

Chris H.

Re: [PHP] Array / form processing

[Ron Piggott]

Many thanks, Chris.

I have one additional question about this shopping cart project.  I need
to make a submit button for the purpose of removing an item from the
shopping cart.



What I am struggling with is to find an effective method for passing the
product serial number (auto_increment in the table it is stored in) so I
know which product the user is removing from their purchase.  Then I will
just unset the session variable that matches.

What are your suggestion(s)?

Thank you your help with my original question Chris.

Ron

> $_SESSION['life_coaching_order'][$product][$gift]['quantity'] =
> $_SESSION['life_coaching_order'][$product][$gift]['quantity'] + 1;
> ===
>
> ...
>
> ===
> foreach ($_SESSION['life_coaching_order'] AS $coaching_fee_theme_reference
> => $value ) {
> ===
>
>
> In this example $value would be an array. To test if it is a gift or not
> you
> would do this from within the foreach loop:
>
> //gift
> if ( isset($value[1]) && isset($value[1]['quantity']) )
> {
>   $gift_quantity = $value[1]['quantity'];
> }
>
> //personal use
> if ( isset($value[2]) && isset($value[2]['quantity']) )
> {
>   $personal_quantity = $value[2]['quantity'];
> }
>
>
> Technically the above IF's are optional, but they are proper syntax.
>
> I don't know how you are with OOP, but you may have more luck using
> objects
> instead of a complex array.
>
> Chris H.
>
>
> On Thu, Oct 7, 2010 at 3:35 PM, Ron Piggott
> wrote:
>
>>
>> I am writing a custom shopping cart that eventually the "cart" will be
>> uploaded to PayPal for payment.  I need to be able to include the option
>> that the purchase is a gift certificate.
>>
>>
>>
>> At present my "add to cart" function goes like this:
>>
>> ===
>> # Gift Certificate: 1 is a gift; 2 is personal use
>>
>> if ( $gift_certificate == "yes" ) {
>>$gift = 1;
>> } else {
>>$gift = 2;
>> }
>>
>> $_SESSION['life_coaching_order'][$product][$gift]['quantity'] =
>> $_SESSION['life_coaching_order'][$product][$gift]['quantity'] + 1;
>> ===
>>
>> Now I need to display the shopping cart contents.  I want to do this
>> through an array as the contents of the shopping cart are in a session
>> variable.  I start displaying the shopping cart contents by a "FOREACH"
>> loop:
>>
>> ===
>> foreach ($_SESSION['life_coaching_order'] AS
>> $coaching_fee_theme_reference
>> => $value ) {
>> ===
>>
>> What I need help with is that I don't know how to test the value of
>> $gift
>> in the above array if it is a 1 or 2 (which symbolizes this is a gift
>> certificate).
>>
>> I have something like this in mind:
>> if ( $_SESSION['life_coaching_order'] == 2 ) {
>>
>> But I don't know how to access all the components of the array while I
>> am
>> going through the FOREACH loop.
>>
>> By using a "1" or "2" I have made gift certificates their own product.
>> If
>> you a better method I could use please provide me with this feedback.
>>
>> Ron
>>
>> The Verse of the Day
>> Encouragement from God's Word
>> www.TheVerseOfTheDay.info
>>
>>
>> --
>> PHP General Mailing List (http://www.php.net/)
>> To unsubscribe, visit: http://www.php.net/unsub.php
>>
>>
>



The Verse of the Day
Encouragement from God's Word
www.TheVerseOfTheDay.info


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Re: [PHP] Array / form processing

[chris h]

$_SESSION['life_coaching_order'][$product][$gift]['quantity'] =
$_SESSION['life_coaching_order'][$product][$gift]['quantity'] + 1;
===

...

===
foreach ($_SESSION['life_coaching_order'] AS $coaching_fee_theme_reference
=> $value ) {
===


In this example $value would be an array. To test if it is a gift or not you
would do this from within the foreach loop:

//gift
if ( isset($value[1]) && isset($value[1]['quantity']) )
{
  $gift_quantity = $value[1]['quantity'];
}

//personal use
if ( isset($value[2]) && isset($value[2]['quantity']) )
{
  $personal_quantity = $value[2]['quantity'];
}


Technically the above IF's are optional, but they are proper syntax.

I don't know how you are with OOP, but you may have more luck using objects
instead of a complex array.

Chris H.


On Thu, Oct 7, 2010 at 3:35 PM, Ron Piggott
wrote:

>
> I am writing a custom shopping cart that eventually the "cart" will be
> uploaded to PayPal for payment.  I need to be able to include the option
> that the purchase is a gift certificate.
>
>
>
> At present my "add to cart" function goes like this:
>
> ===
> # Gift Certificate: 1 is a gift; 2 is personal use
>
> if ( $gift_certificate == "yes" ) {
>$gift = 1;
> } else {
>$gift = 2;
> }
>
> $_SESSION['life_coaching_order'][$product][$gift]['quantity'] =
> $_SESSION['life_coaching_order'][$product][$gift]['quantity'] + 1;
> ===
>
> Now I need to display the shopping cart contents.  I want to do this
> through an array as the contents of the shopping cart are in a session
> variable.  I start displaying the shopping cart contents by a "FOREACH"
> loop:
>
> ===
> foreach ($_SESSION['life_coaching_order'] AS $coaching_fee_theme_reference
> => $value ) {
> ===
>
> What I need help with is that I don't know how to test the value of $gift
> in the above array if it is a 1 or 2 (which symbolizes this is a gift
> certificate).
>
> I have something like this in mind:
> if ( $_SESSION['life_coaching_order'] == 2 ) {
>
> But I don't know how to access all the components of the array while I am
> going through the FOREACH loop.
>
> By using a "1" or "2" I have made gift certificates their own product.  If
> you a better method I could use please provide me with this feedback.
>
> Ron
>
> The Verse of the Day
> Encouragement from God's Word
> www.TheVerseOfTheDay.info
>
>
> --
> PHP General Mailing List (http://www.php.net/)
> To unsubscribe, visit: http://www.php.net/unsub.php
>
>

Re: [PHP] Array question

[tedd]

At 3:31 PM -0500 9/25/10, MikeB wrote:

-snip-

My question, in the loop, why does tha author use:

$results[] = mysql_fetch_array($result);

instead of (as I would expect):

$results[$j] = mysql_fetch_array($result);?

What PHP magic is at work here?


Mike:

That's just a shorthand way to populate an array in PHP.

One of the reasons for this feature is that somewhere in your code 
you may not know what the next index should be. So, if you use --


$results[] = $next_item;

-- then the $next_item will be "automagically" added to the next 
available index in the array. So you may be right in calling it "PHP 
magic" because I have not seen this in other languages.


Understand?

Cheers,

tedd
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Re: [PHP] Array question

[a...@ashleysheridan.co.uk]

I'd also like to add to that:

$array = array();
$array[] = 'text';
$array[2] = 123;
$array[] = 'hello';

Would output:

$array(
0 => 'text',
2 => 123,
3 => 'hello',
);

Note the missing index 1, as php makes a numerical index that is one greater 
than the highest already in use. As the index 2 was explicitly created, php 
made the next one at 3.

Thanks,
Ash
http://www.ashleysheridan.co.uk

- Reply message -
From: "chris h" 
Date: Sat, Sep 25, 2010 22:05
Subject: [PHP] Array question
To: "MikeB" 
Cc: 


Mike,

$results[] will automatically push a value unto the end of an array.

So doing this...
--
$magic = array();
$magic[] = 'a';
$magic[] = 'b';
$magic[] = 'c';
-

is exactly this same as doing this...
--
$normal = array();
$normal[0] = 'a';
$normal[1] = 'b';
$normal[2] = 'c';
-

And yes, in your example "$results[]" would be equivalent to "$results[$j]"


For more reference:
http://www.php.net/manual/en/language.types.array.php


Chris H.


On Sat, Sep 25, 2010 at 4:31 PM, MikeB  wrote:

> I have the following code:
>
> $query = "SELECT * FROM classics";
> $result = mysql_query($query);
>
> if (!$result) die ("Database access failed: " . mysql_error());
> $rows = mysql_num_rows($result);
>
> for ($j = 0 ; $j < $rows ; ++$j)
> {
>$results[] = mysql_fetch_array($result);
> }
>
> mysql_close($db_server);
>
> My question, in the loop, why does tha author use:
>
> $results[] = mysql_fetch_array($result);
>
> instead of (as I would expect):
>
> $results[$j] = mysql_fetch_array($result);?
>
> What PHP magic is at work here?
>
> Thanks.
>
>
> --
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> To unsubscribe, visit: http://www.php.net/unsub.php
>
>

Re: [PHP] Array question

[chris h]

Mike,

$results[] will automatically push a value unto the end of an array.

So doing this...
--
$magic = array();
$magic[] = 'a';
$magic[] = 'b';
$magic[] = 'c';
-

is exactly this same as doing this...
--
$normal = array();
$normal[0] = 'a';
$normal[1] = 'b';
$normal[2] = 'c';
-

And yes, in your example "$results[]" would be equivalent to "$results[$j]"


For more reference:
http://www.php.net/manual/en/language.types.array.php


Chris H.


On Sat, Sep 25, 2010 at 4:31 PM, MikeB  wrote:

> I have the following code:
>
> $query = "SELECT * FROM classics";
> $result = mysql_query($query);
>
> if (!$result) die ("Database access failed: " . mysql_error());
> $rows = mysql_num_rows($result);
>
> for ($j = 0 ; $j < $rows ; ++$j)
> {
>$results[] = mysql_fetch_array($result);
> }
>
> mysql_close($db_server);
>
> My question, in the loop, why does tha author use:
>
> $results[] = mysql_fetch_array($result);
>
> instead of (as I would expect):
>
> $results[$j] = mysql_fetch_array($result);?
>
> What PHP magic is at work here?
>
> Thanks.
>
>
> --
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> To unsubscribe, visit: http://www.php.net/unsub.php
>
>

Re: [PHP] Array help.

[Joshua Kehn]

On Jul 30, 2010, at 3:03 PM, Paul Halliday wrote:

>> 
>> Paul-
>> 
>> Why are those values not defaulted to 0 in the database?
>> 
>> Regards,
>> 
>> -Josh
>> 
>> 
> 
> They are defaulted, the query is grouping:
> 
> select count(status) as count, status from table group by status order
> by status desc;

Paul-

Correct, so stuff with a status of 0 will still show up unless I'm missing 
something.

Regards,

-Josh
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Re: [PHP] Array help.

[Paul Halliday]

On Fri, Jul 30, 2010 at 3:44 PM, Joshua Kehn  wrote:
>
> On Jul 30, 2010, at 2:36 PM, Paul Halliday wrote:
>
>> I have a query that may not always return a result for a value, I need
>> to reflect this with a "0". I am trying to overcome this by doing this
>> (the keys are ID's):
>>
>> while ($row = mysql_fetch_row($statusQuery)) {
>>
>>        $cat = 
>> array(0=>0,1=>0,11=>0,12=>0,13=>0,14=>0,15=>0,16=>0,17=>0,19=>0);
>>
>>        switch ($row[1]) {
>>            case 0: $cat[0] = $row[0]; break;
>>            case 1: $cat[1] = $row[0]; break;
>>            case 11: $cat[11] = $row[0]; break;
>>            case 12: $cat[12] = $row[0]; break;
>>            case 13: $cat[13] = $row[0]; break;
>>            case 14: $cat[14] = $row[0]; break;
>>            case 15: $cat[15] = $row[0]; break;
>>            case 16: $cat[16] = $row[0]; break;
>>            case 17: $cat[17] = $row[0]; break;
>>            case 19: $cat[19] = $row[0]; break;
>>        }
>>
>>        print_r($cat);
>>    }
>>
>> Which gives me this:
>>
>> Array ( [0] => 15547 [1] => 0 [11] => 0 [12] => 0 [13] => 0 [14] => 0
>> [15] => 0 [16] => 0 [17] => 0 [19] => 0 )
>> Array ( [0] => 0 [1] => 0 [11] => 0 [12] => 0 [13] => 0 [14] => 0 [15]s
>> => 30 [16] => 0 [17] => 0 [19] => 0 )
>>
>> The query only return 2 rows:
>>
>> 15 | 30
>> 0 | 15547
>>
>> What am I doing wrong? Is there a more elegant way to achieve what I want?
>>
>> Thanks.
>>
>> --
>> Paul Halliday
>> Ideation | Individualization | Learner | Achiever | Analytical
>> http://www.pintumbler.org
>>
>> --
>> PHP General Mailing List (http://www.php.net/)
>> To unsubscribe, visit: http://www.php.net/unsub.php
>>
>
> Paul-
>
> Why not say:
>
> $cat = array();
> if(isset($row[1])
> {
>    $cat[$row[1]] = $row[0];
> }
>
> print_r($cat);
>
> Regards,
>
> -Josh

I need the results that don't have values assigned though.

ex:

c = 0
h = 9
t = 0
f = 21

Even if the query returned only:

h = 9
f = 21

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Re: [PHP] Array help.

[Joshua Kehn]

On Jul 30, 2010, at 2:36 PM, Paul Halliday wrote:

> I have a query that may not always return a result for a value, I need
> to reflect this with a "0". I am trying to overcome this by doing this
> (the keys are ID's):
> 
> while ($row = mysql_fetch_row($statusQuery)) {
> 
>$cat = 
> array(0=>0,1=>0,11=>0,12=>0,13=>0,14=>0,15=>0,16=>0,17=>0,19=>0);
> 
>switch ($row[1]) {
>case 0: $cat[0] = $row[0]; break;
>case 1: $cat[1] = $row[0]; break;
>case 11: $cat[11] = $row[0]; break;
>case 12: $cat[12] = $row[0]; break;
>case 13: $cat[13] = $row[0]; break;
>case 14: $cat[14] = $row[0]; break;
>case 15: $cat[15] = $row[0]; break;
>case 16: $cat[16] = $row[0]; break;
>case 17: $cat[17] = $row[0]; break;
>case 19: $cat[19] = $row[0]; break;
>}
> 
>print_r($cat);
>}
> 
> Which gives me this:
> 
> Array ( [0] => 15547 [1] => 0 [11] => 0 [12] => 0 [13] => 0 [14] => 0
> [15] => 0 [16] => 0 [17] => 0 [19] => 0 )
> Array ( [0] => 0 [1] => 0 [11] => 0 [12] => 0 [13] => 0 [14] => 0 [15]s
> => 30 [16] => 0 [17] => 0 [19] => 0 )
> 
> The query only return 2 rows:
> 
> 15 | 30
> 0 | 15547
> 
> What am I doing wrong? Is there a more elegant way to achieve what I want?
> 
> Thanks.
> 
> -- 
> Paul Halliday
> Ideation | Individualization | Learner | Achiever | Analytical
> http://www.pintumbler.org
> 
> -- 
> PHP General Mailing List (http://www.php.net/)
> To unsubscribe, visit: http://www.php.net/unsub.php
> 

Paul-

Why not say:

$cat = array();
if(isset($row[1])
{
$cat[$row[1]] = $row[0];
}

print_r($cat);

Regards,

-Josh
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[PHP] Re: php array in different OS

[Yang Fei]

Dear Colin Guthrie ,

 Thanks for your help very much.
 According to your suggestion, I have solved the question.

best wish,
Yang Fei
2010-7-24

[PHP] Re: php array in different OS

[Colin Guthrie]

'Twas brillig, and fyang at 22/07/10 03:34 did gyre and gimble:

Dear Bob McConnell,
Thank you for your reply.
I really post the same message eight times because of the first e-mail 
authentication.please remove the extra e-mail in your free time.
There are two servers ,the first installation of 32-bit linux(RHEL),the 
second installlation 64-bit linux(CENTOS).
PHP version on 32-bit linux(RHEL):5.2.7
PHP version on 64-bit linux(CENTOS):5.2.13
   I found this problem,because the software transplantation.In the 64-bit 
systems,the array seems to always have limited capacity. I'm not sure that is 
php version problem or need other configurations.


I suspect it's just different configuration.

That said, I've generally found that 64bit versions of PHP need more 
memory than their 32bit equivs, so perhaps all you need to do is 
something like:


ini_set('memory_limit', '50M');

and you'll be fine.

Col


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Re: [PHP] Array form processing

[tedd]

At 4:54 PM -0400 6/29/10, Ron Piggott wrote:

I am trying to process a form where the user uses checkboxes:

Sharp
Stabbing
Jabbing

When I do:

foreach($_REQUEST as $key => $val) {
 $$key = $val;
 echo $key . ": " . $val . "";
}

The output is:

painDesc: Array

I need to know the values of the array (IE to know what the user is
checking), not that there is an array.  I hope to save these values to the
database.

Thank you.

Ron


Ron:

Try this:

http://php1.net/b/form-checkbox/

If you want the form to retain the values, try this:

http://php1.net/b/form-checkbox1/


Cheers,

tedd
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RE: [PHP] Array form processing

[Ford, Mike]

> -Original Message-
> From: Ron Piggott [mailto:ron.pigg...@actsministries.org]
> Sent: 29 June 2010 22:22
> 
> Am I on the right track?  I don't know what to do with the second
> "FOREACH"

Sort of.

> 
>  
> foreach($_REQUEST as $key => $val) {
>  $$key = $val;
>echo $key . ": " . $val . "";
> 
>if ( $val == "Array" ) {

I would prefer to use is_array() here:

if (is_array($val))

>   $i=0;
> 

At this point, you've just proved that $val is an array (whichever test you 
use!), so simply foreach it like one. I know you know how to do that as you did 
it with $_REQUEST above!

>   foreach ($val) {
>   echo "$val[$i]";
>   $i++;
>   }

foreach ($val as $option) {
   echo "$option\n";
}

> 
>}
> }
> 
> ?>

Cheers!

Mike
 -- 
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Electronic Information Developer, Libraries and Learning Innovation,  
Leeds Metropolitan University, C507, Civic Quarter Campus, 
Woodhouse Lane, LEEDS,  LS1 3HE,  United Kingdom 
Email: m.f...@leedsmet.ac.uk 
Tel: +44 113 812 4730





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Re: [PHP] Array form processing

[Jim Lucas]

Ron Piggott wrote:
> I am trying to process a form where the user uses checkboxes:
> 
> Sharp
> Stabbing
> Jabbing
> 
> When I do:
> 
> foreach($_REQUEST as $key => $val) {
>  $$key = $val;
>echo $key . ": " . $val . "";
> }
> 
> The output is:
> 
> painDesc: Array
> 
> I need to know the values of the array (IE to know what the user is
> checking), not that there is an array.  I hope to save these values to the
> database.
> 
> Thank you.
> 
> Ron
> 
> 

Think about it...

You would not  and expect to get the value of any form
field would you.  No, you wouldn't.

Given the following form...


Title
Subject



on the processing page, I would access those variables by writing the following.

echo $_REQUEST['title'];
echo $_REQUEST['subject'];

With that said, going back to your issue, you would do this:

if ( $_REQUEST['painDesc'] && count($_REQUEST['painDesc']) ) {
  foreach($_REQUEST['painDesc'] as $key => $val) {
echo "{$key}:{$val}";
  }
}

-- 
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A: Maybe because some people are too annoyed by top-posting.
Q: Why do I not get an answer to my question(s)?
A: Because it messes up the order in which people normally read text.
Q: Why is top-posting such a bad thing?

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Re: [PHP] Array form processing

[Ron Piggott]

Am I on the right track?  I don't know what to do with the second "FOREACH"

 $val) {
 $$key = $val;
 echo $key . ": " . $val . "";

 if ( $val == "Array" ) {
$i=0;

foreach ($val) {
echo "$val[$i]";
$i++;
}

 }
}

?>


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Re: [PHP] Array form processing

[Shreyas Agasthya]

The painDesc array is what that should be iterated.

--Shreyas

On Wed, Jun 30, 2010 at 2:27 AM, Ashley Sheridan
wrote:

> On Tue, 2010-06-29 at 16:54 -0400, Ron Piggott wrote:
>
> > I am trying to process a form where the user uses checkboxes:
> >
> > Sharp
> > Stabbing
> > Jabbing
> >
> > When I do:
> >
> > foreach($_REQUEST as $key => $val) {
> >  $$key = $val;
> >echo $key . ": " . $val . "";
> > }
> >
> > The output is:
> >
> > painDesc: Array
> >
> > I need to know the values of the array (IE to know what the user is
> > checking), not that there is an array.  I hope to save these values to
> the
> > database.
> >
> > Thank you.
> >
> > Ron
> >
> >
>
>
> You need to iterate that array, as that holds the values of everything
> sent by the browser
>
> Thanks,
> Ash
> http://www.ashleysheridan.co.uk
>
>
>


-- 
Regards,
Shreyas Agasthya

Re: [PHP] Array form processing

[Ashley Sheridan]

On Tue, 2010-06-29 at 16:54 -0400, Ron Piggott wrote:

> I am trying to process a form where the user uses checkboxes:
> 
> Sharp
> Stabbing
> Jabbing
> 
> When I do:
> 
> foreach($_REQUEST as $key => $val) {
>  $$key = $val;
>echo $key . ": " . $val . "";
> }
> 
> The output is:
> 
> painDesc: Array
> 
> I need to know the values of the array (IE to know what the user is
> checking), not that there is an array.  I hope to save these values to the
> database.
> 
> Thank you.
> 
> Ron
> 
> 


You need to iterate that array, as that holds the values of everything
sent by the browser

Thanks,
Ash
http://www.ashleysheridan.co.uk

Re: [PHP] array key's: which is correct?

[Robert Cummings]

Paul M Foster wrote:

On Tue, Jun 08, 2010 at 04:44:53PM +0200, Peter Lind wrote:


On 8 June 2010 16:38, Ashley Sheridan  wrote:

On Tue, 2010-06-08 at 10:35 -0400, Paul M Foster wrote:


On Tue, Jun 08, 2010 at 09:38:58AM -0400, Robert Cummings wrote:


Tanel Tammik wrote:

Hi,

which one is correct or "better"?

$array[3] = '';
or
$array['3'] = '';

$i = 7;

$array[$i] = '';
or
$array["$i"] = '';

Sometimes it is good to illustrate the correct answer:

 '1',
'2' => '2',
'three' => 'three',
'4.0'   => '4.0',
5.0 => 5.0,
);

var_dump( array_keys( $array ) );

?>

The answer is surprising (well, not really :) and certainly advocates
against making literal strings of integers or manually converting a
string integer to a real integer or using floating point keys.

Curse you, Rob Cummings! ;-}

I was stunned at the results of this. I assumed that integers cast as
strings would remain strings as indexes. Not so. And then float indexes
cast to ints. Argh!

My advice to the original poster was slightly incorrect. But I would
still encourage you to avoid enclosing variables in double-quotes
unnecessarily. (And integers in single-quotes for that matter.)

Paul

--
Paul M. Foster



The obvious way around this would be to include some sort of character
in the index that can't be cast to an integer, so instead of $array[1.0]
which would equate to $array[1] maybe add an underscore to make it
$array['_1.0']. It's not the prettiest of solutions, but it does mean
that indexes are kept as you intended, and you need only strip out the
first character, although I imagine a lot of string manipulation on a
large array would decrease performance.

Floats in quotes are not cast to int when used as array keys. Just an FYI :)


Umm, yes, you are correct. I pasted Rob's code into a test file, added
some other print_r()s and such, just to look at the whole issue. I'm
*still* examining the results, trying to wrap my wits around why things
are done this way.


If I were to hazard a guess as to the "why" of the current 
functionality, I would say converting an integer string to a real i nt 
is optimal with respect to both memory and processing when trying to 
find values by key. As for floating points... Due to the inability to 
accurately represent some floating point numbers in binary, one would 
often not get what one expects even when converting to a string. So 
maybe integer was chosen since it was more optimal than a string.


Cheers,
Rob.
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Re: [PHP] array key's: which is correct?

[Paul M Foster]

On Tue, Jun 08, 2010 at 04:44:53PM +0200, Peter Lind wrote:

> On 8 June 2010 16:38, Ashley Sheridan  wrote:
> > On Tue, 2010-06-08 at 10:35 -0400, Paul M Foster wrote:
> >
> >> On Tue, Jun 08, 2010 at 09:38:58AM -0400, Robert Cummings wrote:
> >>
> >> > Tanel Tammik wrote:
> >> >> Hi,
> >> >>
> >> >> which one is correct or "better"?
> >> >>
> >> >> $array[3] = '';
> >> >> or
> >> >> $array['3'] = '';
> >> >>
> >> >> $i = 7;
> >> >>
> >> >> $array[$i] = '';
> >> >> or
> >> >> $array["$i"] = '';
> >> >
> >> > Sometimes it is good to illustrate the correct answer:
> >> >
> >> >  >> >
> >> > $array = array
> >> > (
> >> >     '1'     => '1',
> >> >     '2'     => '2',
> >> >     'three' => 'three',
> >> >     '4.0'   => '4.0',
> >> >     5.0     => 5.0,
> >> > );
> >> >
> >> > var_dump( array_keys( $array ) );
> >> >
> >> > ?>
> >> >
> >> > The answer is surprising (well, not really :) and certainly advocates
> >> > against making literal strings of integers or manually converting a
> >> > string integer to a real integer or using floating point keys.
> >>
> >> Curse you, Rob Cummings! ;-}
> >>
> >> I was stunned at the results of this. I assumed that integers cast as
> >> strings would remain strings as indexes. Not so. And then float indexes
> >> cast to ints. Argh!
> >>
> >> My advice to the original poster was slightly incorrect. But I would
> >> still encourage you to avoid enclosing variables in double-quotes
> >> unnecessarily. (And integers in single-quotes for that matter.)
> >>
> >> Paul
> >>
> >> --
> >> Paul M. Foster
> >>
> >
> >
> > The obvious way around this would be to include some sort of character
> > in the index that can't be cast to an integer, so instead of $array[1.0]
> > which would equate to $array[1] maybe add an underscore to make it
> > $array['_1.0']. It's not the prettiest of solutions, but it does mean
> > that indexes are kept as you intended, and you need only strip out the
> > first character, although I imagine a lot of string manipulation on a
> > large array would decrease performance.
> 
> Floats in quotes are not cast to int when used as array keys. Just an FYI :)

Umm, yes, you are correct. I pasted Rob's code into a test file, added
some other print_r()s and such, just to look at the whole issue. I'm
*still* examining the results, trying to wrap my wits around why things
are done this way.

Paul

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Re: [PHP] array key's: which is correct?

[Ashley Sheridan]

On Tue, 2010-06-08 at 17:11 +0200, Peter Lind wrote:

> On 8 June 2010 16:53, Ashley Sheridan  wrote:
> >
> > On Tue, 2010-06-08 at 16:44 +0200, Peter Lind wrote:
> >
> > On 8 June 2010 16:38, Ashley Sheridan  wrote:
> > > On Tue, 2010-06-08 at 10:35 -0400, Paul M Foster wrote:
> > >
> > >> On Tue, Jun 08, 2010 at 09:38:58AM -0400, Robert Cummings wrote:
> > >>
> > >> > Tanel Tammik wrote:
> > >> >> Hi,
> > >> >>
> > >> >> which one is correct or "better"?
> > >> >>
> > >> >> $array[3] = '';
> > >> >> or
> > >> >> $array['3'] = '';
> > >> >>
> > >> >> $i = 7;
> > >> >>
> > >> >> $array[$i] = '';
> > >> >> or
> > >> >> $array["$i"] = '';
> > >> >
> > >> > Sometimes it is good to illustrate the correct answer:
> > >> >
> > >> >  > >> >
> > >> > $array = array
> > >> > (
> > >> > '1' => '1',
> > >> > '2' => '2',
> > >> > 'three' => 'three',
> > >> > '4.0'   => '4.0',
> > >> > 5.0 => 5.0,
> > >> > );
> > >> >
> > >> > var_dump( array_keys( $array ) );
> > >> >
> > >> > ?>
> > >> >
> > >> > The answer is surprising (well, not really :) and certainly advocates
> > >> > against making literal strings of integers or manually converting a
> > >> > string integer to a real integer or using floating point keys.
> > >>
> > >> Curse you, Rob Cummings! ;-}
> > >>
> > >> I was stunned at the results of this. I assumed that integers cast as
> > >> strings would remain strings as indexes. Not so. And then float indexes
> > >> cast to ints. Argh!
> > >>
> > >> My advice to the original poster was slightly incorrect. But I would
> > >> still encourage you to avoid enclosing variables in double-quotes
> > >> unnecessarily. (And integers in single-quotes for that matter.)
> > >>
> > >> Paul
> > >>
> > >> --
> > >> Paul M. Foster
> > >>
> > >
> > >
> > > The obvious way around this would be to include some sort of character
> > > in the index that can't be cast to an integer, so instead of $array[1.0]
> > > which would equate to $array[1] maybe add an underscore to make it
> > > $array['_1.0']. It's not the prettiest of solutions, but it does mean
> > > that indexes are kept as you intended, and you need only strip out the
> > > first character, although I imagine a lot of string manipulation on a
> > > large array would decrease performance.
> >
> > Floats in quotes are not cast to int when used as array keys. Just an FYI :)
> >
> > Regards
> > Peter
> >
> >
> > They are. Go look at Robs earlier example. Even building upon that to make 
> > a float value where it doesn't equate to an integer, it is still cast as an 
> > integer unless it's inside a string:
> >
> > $array = array
> > (
> >  '1' => '1',
> >  '2' => '2',
> >  'three' => 'three',
> >  '4.0'   => '4.0',
> >  5.0 => 5.0,
> >  6.5 => 6.5,
> > );
> >
> > var_dump( array_keys( $array ) );
> >
> > That's Robs code, but I added in the last element to show how a float index 
> > is converted to an integer. Putting the float value inside a string solves 
> > the issue.
> >
> 
> Did you read what I wrote?
> 
> > ***Floats in quotes*** are not cast to int when used as array keys. Just an 
> > FYI :)
> 
> I tested Robs example, that's how I know that floats in quotes are not
> converted to ints, whether or not you use '4.0' or '6.5'
> 
> Regards
> Peter
> 
> --
> 
> WWW: http://plphp.dk / http://plind.dk
> LinkedIn: http://www.linkedin.com/in/plind
> BeWelcome/Couchsurfing: Fake51
> Twitter: http://twitter.com/kafe15
> 


Sorry, my bad, I misread your email, you were right!

Thanks,
Ash
http://www.ashleysheridan.co.uk

Re: [PHP] array key's: which is correct?

[Peter Lind]

On 8 June 2010 16:53, Ashley Sheridan  wrote:
>
> On Tue, 2010-06-08 at 16:44 +0200, Peter Lind wrote:
>
> On 8 June 2010 16:38, Ashley Sheridan  wrote:
> > On Tue, 2010-06-08 at 10:35 -0400, Paul M Foster wrote:
> >
> >> On Tue, Jun 08, 2010 at 09:38:58AM -0400, Robert Cummings wrote:
> >>
> >> > Tanel Tammik wrote:
> >> >> Hi,
> >> >>
> >> >> which one is correct or "better"?
> >> >>
> >> >> $array[3] = '';
> >> >> or
> >> >> $array['3'] = '';
> >> >>
> >> >> $i = 7;
> >> >>
> >> >> $array[$i] = '';
> >> >> or
> >> >> $array["$i"] = '';
> >> >
> >> > Sometimes it is good to illustrate the correct answer:
> >> >
> >> >  >> >
> >> > $array = array
> >> > (
> >> >     '1'     => '1',
> >> >     '2'     => '2',
> >> >     'three' => 'three',
> >> >     '4.0'   => '4.0',
> >> >     5.0     => 5.0,
> >> > );
> >> >
> >> > var_dump( array_keys( $array ) );
> >> >
> >> > ?>
> >> >
> >> > The answer is surprising (well, not really :) and certainly advocates
> >> > against making literal strings of integers or manually converting a
> >> > string integer to a real integer or using floating point keys.
> >>
> >> Curse you, Rob Cummings! ;-}
> >>
> >> I was stunned at the results of this. I assumed that integers cast as
> >> strings would remain strings as indexes. Not so. And then float indexes
> >> cast to ints. Argh!
> >>
> >> My advice to the original poster was slightly incorrect. But I would
> >> still encourage you to avoid enclosing variables in double-quotes
> >> unnecessarily. (And integers in single-quotes for that matter.)
> >>
> >> Paul
> >>
> >> --
> >> Paul M. Foster
> >>
> >
> >
> > The obvious way around this would be to include some sort of character
> > in the index that can't be cast to an integer, so instead of $array[1.0]
> > which would equate to $array[1] maybe add an underscore to make it
> > $array['_1.0']. It's not the prettiest of solutions, but it does mean
> > that indexes are kept as you intended, and you need only strip out the
> > first character, although I imagine a lot of string manipulation on a
> > large array would decrease performance.
>
> Floats in quotes are not cast to int when used as array keys. Just an FYI :)
>
> Regards
> Peter
>
>
> They are. Go look at Robs earlier example. Even building upon that to make a 
> float value where it doesn't equate to an integer, it is still cast as an 
> integer unless it's inside a string:
>
> $array = array
> (
>  '1' => '1',
>  '2' => '2',
>  'three' => 'three',
>  '4.0'   => '4.0',
>  5.0 => 5.0,
>  6.5 => 6.5,
> );
>
> var_dump( array_keys( $array ) );
>
> That's Robs code, but I added in the last element to show how a float index 
> is converted to an integer. Putting the float value inside a string solves 
> the issue.
>

Did you read what I wrote?

> ***Floats in quotes*** are not cast to int when used as array keys. Just an 
> FYI :)

I tested Robs example, that's how I know that floats in quotes are not
converted to ints, whether or not you use '4.0' or '6.5'

Regards
Peter

--

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Re: [PHP] array key's: which is correct?

[Ashley Sheridan]

On Tue, 2010-06-08 at 16:44 +0200, Peter Lind wrote:

> On 8 June 2010 16:38, Ashley Sheridan  wrote:
> > On Tue, 2010-06-08 at 10:35 -0400, Paul M Foster wrote:
> >
> >> On Tue, Jun 08, 2010 at 09:38:58AM -0400, Robert Cummings wrote:
> >>
> >> > Tanel Tammik wrote:
> >> >> Hi,
> >> >>
> >> >> which one is correct or "better"?
> >> >>
> >> >> $array[3] = '';
> >> >> or
> >> >> $array['3'] = '';
> >> >>
> >> >> $i = 7;
> >> >>
> >> >> $array[$i] = '';
> >> >> or
> >> >> $array["$i"] = '';
> >> >
> >> > Sometimes it is good to illustrate the correct answer:
> >> >
> >> >  >> >
> >> > $array = array
> >> > (
> >> > '1' => '1',
> >> > '2' => '2',
> >> > 'three' => 'three',
> >> > '4.0'   => '4.0',
> >> > 5.0 => 5.0,
> >> > );
> >> >
> >> > var_dump( array_keys( $array ) );
> >> >
> >> > ?>
> >> >
> >> > The answer is surprising (well, not really :) and certainly advocates
> >> > against making literal strings of integers or manually converting a
> >> > string integer to a real integer or using floating point keys.
> >>
> >> Curse you, Rob Cummings! ;-}
> >>
> >> I was stunned at the results of this. I assumed that integers cast as
> >> strings would remain strings as indexes. Not so. And then float indexes
> >> cast to ints. Argh!
> >>
> >> My advice to the original poster was slightly incorrect. But I would
> >> still encourage you to avoid enclosing variables in double-quotes
> >> unnecessarily. (And integers in single-quotes for that matter.)
> >>
> >> Paul
> >>
> >> --
> >> Paul M. Foster
> >>
> >
> >
> > The obvious way around this would be to include some sort of character
> > in the index that can't be cast to an integer, so instead of $array[1.0]
> > which would equate to $array[1] maybe add an underscore to make it
> > $array['_1.0']. It's not the prettiest of solutions, but it does mean
> > that indexes are kept as you intended, and you need only strip out the
> > first character, although I imagine a lot of string manipulation on a
> > large array would decrease performance.
> 
> Floats in quotes are not cast to int when used as array keys. Just an FYI :)
> 
> Regards
> Peter
> 


They are. Go look at Robs earlier example. Even building upon that to
make a float value where it doesn't equate to an integer, it is still
cast as an integer unless it's inside a string:

$array = array
(
 '1' => '1',
 '2' => '2',
 'three' => 'three',
 '4.0'   => '4.0',
 5.0 => 5.0,
 6.5=> 6.5,
);

var_dump( array_keys( $array ) );

That's Robs code, but I added in the last element to show how a float
index is converted to an integer. Putting the float value inside a
string solves the issue.

Thanks,
Ash
http://www.ashleysheridan.co.uk

Re: [PHP] array key's: which is correct?

[Peter Lind]

On 8 June 2010 16:38, Ashley Sheridan  wrote:
> On Tue, 2010-06-08 at 10:35 -0400, Paul M Foster wrote:
>
>> On Tue, Jun 08, 2010 at 09:38:58AM -0400, Robert Cummings wrote:
>>
>> > Tanel Tammik wrote:
>> >> Hi,
>> >>
>> >> which one is correct or "better"?
>> >>
>> >> $array[3] = '';
>> >> or
>> >> $array['3'] = '';
>> >>
>> >> $i = 7;
>> >>
>> >> $array[$i] = '';
>> >> or
>> >> $array["$i"] = '';
>> >
>> > Sometimes it is good to illustrate the correct answer:
>> >
>> > > >
>> > $array = array
>> > (
>> >     '1'     => '1',
>> >     '2'     => '2',
>> >     'three' => 'three',
>> >     '4.0'   => '4.0',
>> >     5.0     => 5.0,
>> > );
>> >
>> > var_dump( array_keys( $array ) );
>> >
>> > ?>
>> >
>> > The answer is surprising (well, not really :) and certainly advocates
>> > against making literal strings of integers or manually converting a
>> > string integer to a real integer or using floating point keys.
>>
>> Curse you, Rob Cummings! ;-}
>>
>> I was stunned at the results of this. I assumed that integers cast as
>> strings would remain strings as indexes. Not so. And then float indexes
>> cast to ints. Argh!
>>
>> My advice to the original poster was slightly incorrect. But I would
>> still encourage you to avoid enclosing variables in double-quotes
>> unnecessarily. (And integers in single-quotes for that matter.)
>>
>> Paul
>>
>> --
>> Paul M. Foster
>>
>
>
> The obvious way around this would be to include some sort of character
> in the index that can't be cast to an integer, so instead of $array[1.0]
> which would equate to $array[1] maybe add an underscore to make it
> $array['_1.0']. It's not the prettiest of solutions, but it does mean
> that indexes are kept as you intended, and you need only strip out the
> first character, although I imagine a lot of string manipulation on a
> large array would decrease performance.

Floats in quotes are not cast to int when used as array keys. Just an FYI :)

Regards
Peter

-- 

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LinkedIn: http://www.linkedin.com/in/plind
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Re: [PHP] array key's: which is correct?

[Ashley Sheridan]

On Tue, 2010-06-08 at 10:35 -0400, Paul M Foster wrote:

> On Tue, Jun 08, 2010 at 09:38:58AM -0400, Robert Cummings wrote:
> 
> > Tanel Tammik wrote:
> >> Hi,
> >>
> >> which one is correct or "better"?
> >>
> >> $array[3] = '';
> >> or
> >> $array['3'] = '';
> >>
> >> $i = 7;
> >>
> >> $array[$i] = '';
> >> or
> >> $array["$i"] = '';
> >
> > Sometimes it is good to illustrate the correct answer:
> >
> >  >
> > $array = array
> > (
> > '1' => '1',
> > '2' => '2',
> > 'three' => 'three',
> > '4.0'   => '4.0',
> > 5.0 => 5.0,
> > );
> >
> > var_dump( array_keys( $array ) );
> >
> > ?>
> >
> > The answer is surprising (well, not really :) and certainly advocates
> > against making literal strings of integers or manually converting a
> > string integer to a real integer or using floating point keys.
> 
> Curse you, Rob Cummings! ;-}
> 
> I was stunned at the results of this. I assumed that integers cast as
> strings would remain strings as indexes. Not so. And then float indexes
> cast to ints. Argh!
> 
> My advice to the original poster was slightly incorrect. But I would
> still encourage you to avoid enclosing variables in double-quotes
> unnecessarily. (And integers in single-quotes for that matter.)
> 
> Paul
> 
> -- 
> Paul M. Foster
> 


The obvious way around this would be to include some sort of character
in the index that can't be cast to an integer, so instead of $array[1.0]
which would equate to $array[1] maybe add an underscore to make it
$array['_1.0']. It's not the prettiest of solutions, but it does mean
that indexes are kept as you intended, and you need only strip out the
first character, although I imagine a lot of string manipulation on a
large array would decrease performance.

Thanks,
Ash
http://www.ashleysheridan.co.uk

Re: [PHP] array key's: which is correct?

[Paul M Foster]

On Tue, Jun 08, 2010 at 09:38:58AM -0400, Robert Cummings wrote:

> Tanel Tammik wrote:
>> Hi,
>>
>> which one is correct or "better"?
>>
>> $array[3] = '';
>> or
>> $array['3'] = '';
>>
>> $i = 7;
>>
>> $array[$i] = '';
>> or
>> $array["$i"] = '';
>
> Sometimes it is good to illustrate the correct answer:
>
> 
> $array = array
> (
> '1' => '1',
> '2' => '2',
> 'three' => 'three',
> '4.0'   => '4.0',
> 5.0 => 5.0,
> );
>
> var_dump( array_keys( $array ) );
>
> ?>
>
> The answer is surprising (well, not really :) and certainly advocates
> against making literal strings of integers or manually converting a
> string integer to a real integer or using floating point keys.

Curse you, Rob Cummings! ;-}

I was stunned at the results of this. I assumed that integers cast as
strings would remain strings as indexes. Not so. And then float indexes
cast to ints. Argh!

My advice to the original poster was slightly incorrect. But I would
still encourage you to avoid enclosing variables in double-quotes
unnecessarily. (And integers in single-quotes for that matter.)

Paul

-- 
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Re: [PHP] array key's: which is correct?

[Ashley Sheridan]

On Tue, 2010-06-08 at 09:38 -0400, Robert Cummings wrote:

> Tanel Tammik wrote:
> > Hi,
> > 
> > which one is correct or "better"?
> > 
> > $array[3] = '';
> > or
> > $array['3'] = '';
> > 
> > $i = 7;
> > 
> > $array[$i] = '';
> > or
> > $array["$i"] = '';
> 
> Sometimes it is good to illustrate the correct answer:
> 
>  
> $array = array
> (
>  '1' => '1',
>  '2' => '2',
>  'three' => 'three',
>  '4.0'   => '4.0',
>  5.0 => 5.0,
> );
> 
> var_dump( array_keys( $array ) );
> 
> ?>
> 
> The answer is surprising (well, not really :) and certainly advocates 
> against making literal strings of integers or manually converting a 
> string integer to a real integer or using floating point keys.
> 
> Cheers,
> Rob.
> -- 
> E-Mail Disclaimer: Information contained in this message and any
> attached documents is considered confidential and legally protected.
> This message is intended solely for the addressee(s). Disclosure,
> copying, and distribution are prohibited unless authorized.
> 


Yeah, I found that out the hard way when I was trying to make an array
of Gantt tasks, and realised that all my nice task numbers were changed!

Thanks,
Ash
http://www.ashleysheridan.co.uk

Re: [PHP] array key's: which is correct?

[Robert Cummings]

Tanel Tammik wrote:

Hi,

which one is correct or "better"?

$array[3] = '';
or
$array['3'] = '';

$i = 7;

$array[$i] = '';
or
$array["$i"] = '';


Sometimes it is good to illustrate the correct answer:

 '1',
'2' => '2',
'three' => 'three',
'4.0'   => '4.0',
5.0 => 5.0,
);

var_dump( array_keys( $array ) );

?>

The answer is surprising (well, not really :) and certainly advocates 
against making literal strings of integers or manually converting a 
string integer to a real integer or using floating point keys.


Cheers,
Rob.
--
E-Mail Disclaimer: Information contained in this message and any
attached documents is considered confidential and legally protected.
This message is intended solely for the addressee(s). Disclosure,
copying, and distribution are prohibited unless authorized.

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Re: [PHP] array key's: which is correct?

[Ashley Sheridan]

On Tue, 2010-06-08 at 16:12 +0300, Tanel Tammik wrote:

> Hi,
> 
> which one is correct or "better"?
> 
> $array[3] = '';
> or
> $array['3'] = '';
> 
> $i = 7;
> 
> $array[$i] = '';
> or
> $array["$i"] = '';
> 
> 
> Br
> Tanel 
> 
> 
> 


The two indexes are equivalent, although I reckon the integer one will
give better performance over the string.

Thanks,
Ash
http://www.ashleysheridan.co.uk

Re: [PHP] array key's: which is correct?

[Paul M Foster]

On Tue, Jun 08, 2010 at 04:12:42PM +0300, Tanel Tammik wrote:

> Hi,
> 
> which one is correct or "better"?
> 
> $array[3] = '';
> or
> $array['3'] = '';

If the index for (integer) 3, the first example is correct. If the index
is (string) '3', the second example is correct.

> 
> $i = 7;
> 
> $array[$i] = '';
> or
> $array["$i"] = '';
> 

There's no reason to use "$i". The end result will be the same, but in
the case of "$i", you're forcing the PHP interpreter to interpret the
string "$i", looking for variables (like $i), and output whatever else
is in the string (which in this case is nothing). Also, if $i is an
integer, you have the same problem as above. In the first case, you get
$array[7]. In the second case, you get $array['7'].

Paul

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Re: [PHP] Array group and sum values.

[Shawn McKenzie]

On 05/11/2010 04:09 PM, Shawn McKenzie wrote:
> On 05/11/2010 02:17 PM, Paul Halliday wrote:
>> On Tue, May 11, 2010 at 4:03 PM, Jim Lucas  wrote:
>>> Paul Halliday wrote:
 On Tue, May 11, 2010 at 2:25 PM, Jim Lucas  wrote:
> Paul Halliday wrote:
>> I have this:
>>
>> while ($row = mysql_fetch_array($theData[0])) {
>>
>> $col1[] = $row[0];
>> $col2[] = lookup($row[1]); // this goes off and gets the country 
>> name.
>>
>> I then loop through col1 and col2 to produce something like this:
>>
>> 52ARMENIA
>> 215   CANADA
>> 57CANADA
>> 261   COLOMBIA
>> 53EGYPT
>> 62INDIA
>> 50INDIA
>>
>> Is there a way I can group these?
>>
>> Thanks!
>>
>>
>>
> Group them??
>
> How about this
>
> while ($row = mysql_fetch_array($theData[0])) {
>
>$col1[lookup($row[1])][] = $row[0];
>
> which, using the data you showed, will give you this
>
>
> Array
> (
>[ARMENIA] => Array
>(
>[0] => 52
>)
>
>[CANADA] => Array
>(
>[0] => 215
>[1] => 57
>)
>
>[COLOMBIA] => Array
>(
>[0] => 261
>)
>
>[EGYPT] => Array
>(
>[0] => 53
>)
>
>[INDIA] => Array
>(
>[0] => 62
>[1] => 50
>)
>
> )
>
> --
> Jim Lucas
>
>   "Some men are born to greatness, some achieve greatness,
>   and some have greatness thrust upon them."
>
> Twelfth Night, Act II, Scene V
>by William Shakespeare
>

 I was actually hoping to have them arranged like:

 $col1[0] = INDIA
 $col2[0] = 112
 $col1[1] = CANADA
 $col2[1] = 272
 ...

 Thanks.

> 
> I would probably do this:
> 
> $col1 = $col2 = array();
> 
> while ($row = mysql_fetch_array($theData[0])) {
>   $country = lookup($row[1]);
> 
>   if(($found = array_search($country, $col1)) !== false) {
>   $col2[$found] += $row[0];
>   } else {
>   $col1[] = $country;
>   $col2[] = $row[0];
>   }
> }
> 

Although I myself would prefer it to be in this format:

$result = array();

foreach($rows as $row) {
$country = lookup($row[1]);

if(isset($result[$country])) {
$result[$country] += $row[0];
} else {
$result[$country] = $row[0];
}
}

Which would give:

array
(
   INDIA => 112
   CANADA => 272
   //etc...
)

Then to use, just:

foreach($result as $country => $value) {
echo $country . ' ' . $value;  // or whatever
}

-- 
Thanks!
-Shawn
http://www.spidean.com

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Re: [PHP] Array group and sum values.

[Shawn McKenzie]

On 05/11/2010 02:17 PM, Paul Halliday wrote:
> On Tue, May 11, 2010 at 4:03 PM, Jim Lucas  wrote:
>> Paul Halliday wrote:
>>> On Tue, May 11, 2010 at 2:25 PM, Jim Lucas  wrote:
 Paul Halliday wrote:
> I have this:
>
> while ($row = mysql_fetch_array($theData[0])) {
>
> $col1[] = $row[0];
> $col2[] = lookup($row[1]); // this goes off and gets the country name.
>
> I then loop through col1 and col2 to produce something like this:
>
> 52ARMENIA
> 215   CANADA
> 57CANADA
> 261   COLOMBIA
> 53EGYPT
> 62INDIA
> 50INDIA
>
> Is there a way I can group these?
>
> Thanks!
> 
> 
>
 Group them??

 How about this

 while ($row = mysql_fetch_array($theData[0])) {

$col1[lookup($row[1])][] = $row[0];

 which, using the data you showed, will give you this


 Array
 (
[ARMENIA] => Array
(
[0] => 52
)

[CANADA] => Array
(
[0] => 215
[1] => 57
)

[COLOMBIA] => Array
(
[0] => 261
)

[EGYPT] => Array
(
[0] => 53
)

[INDIA] => Array
(
[0] => 62
[1] => 50
)

 )

 --
 Jim Lucas

   "Some men are born to greatness, some achieve greatness,
   and some have greatness thrust upon them."

 Twelfth Night, Act II, Scene V
by William Shakespeare

>>>
>>> I was actually hoping to have them arranged like:
>>>
>>> $col1[0] = INDIA
>>> $col2[0] = 112
>>> $col1[1] = CANADA
>>> $col2[1] = 272
>>> ...
>>>
>>> Thanks.
>>>

I would probably do this:

$col1 = $col2 = array();

while ($row = mysql_fetch_array($theData[0])) {
$country = lookup($row[1]);

if(($found = array_search($country, $col1)) !== false) {
$col2[$found] += $row[0];
} else {
$col1[] = $country;
$col2[] = $row[0];
}
}

-- 
Thanks!
-Shawn
http://www.spidean.com

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Re: [PHP] Array group and sum values.

[Paul Halliday]

On Tue, May 11, 2010 at 4:03 PM, Jim Lucas  wrote:
> Paul Halliday wrote:
>> On Tue, May 11, 2010 at 2:25 PM, Jim Lucas  wrote:
>>> Paul Halliday wrote:
 I have this:

 while ($row = mysql_fetch_array($theData[0])) {

     $col1[] = $row[0];
     $col2[] = lookup($row[1]); // this goes off and gets the country name.

 I then loop through col1 and col2 to produce something like this:

 52    ARMENIA
 215   CANADA
 57    CANADA
 261   COLOMBIA
 53    EGYPT
 62    INDIA
 50    INDIA

 Is there a way I can group these?

 Thanks!



>>> Group them??
>>>
>>> How about this
>>>
>>> while ($row = mysql_fetch_array($theData[0])) {
>>>
>>>    $col1[lookup($row[1])][] = $row[0];
>>>
>>> which, using the data you showed, will give you this
>>>
>>>
>>> Array
>>> (
>>>    [ARMENIA] => Array
>>>        (
>>>            [0] => 52
>>>        )
>>>
>>>    [CANADA] => Array
>>>        (
>>>            [0] => 215
>>>            [1] => 57
>>>        )
>>>
>>>    [COLOMBIA] => Array
>>>        (
>>>            [0] => 261
>>>        )
>>>
>>>    [EGYPT] => Array
>>>        (
>>>            [0] => 53
>>>        )
>>>
>>>    [INDIA] => Array
>>>        (
>>>            [0] => 62
>>>            [1] => 50
>>>        )
>>>
>>> )
>>>
>>> --
>>> Jim Lucas
>>>
>>>   "Some men are born to greatness, some achieve greatness,
>>>       and some have greatness thrust upon them."
>>>
>>> Twelfth Night, Act II, Scene V
>>>    by William Shakespeare
>>>
>>
>> I was actually hoping to have them arranged like:
>>
>> $col1[0] = INDIA
>> $col2[0] = 112
>> $col1[1] = CANADA
>> $col2[1] = 272
>> ...
>>
>> Thanks.
>>
>
> Well, then take what I gave you and do this:
>
> $group[lookup($row[1])][] = $row[0];
>
> foreach ( $group AS $x => $y )
> {
>        $col1[] = $x;
>        $col2[] = array_sum($y);
> }
>
>
> In the end you will end up with this
>
> 
> $data = array(
>                array(52,       'ARMENIA'),
>                array(215,      'CANADA'),
>                array(57,       'CANADA'),
>                array(261,      'COLOMBIA'),
>                array(53,       'EGYPT'),
>                array(62,       'INDIA'),
>                array(50,       'INDIA'),
>                );
>
> foreach ( $data AS $row )
> {
>        $group[$row[1]][] = $row[0];
> }
>
> print_r($group);
>
> foreach ( $group AS $x => $y )
> {
>        $col1[] = $x;
>        $col2[] = array_sum($y);
> }
>
> print_r($col1);
> print_r($col2);
>
>


Perfect! and a lot simpler than I thought.

Thanks.

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Re: [PHP] Array group and sum values.

[Jim Lucas]

Paul Halliday wrote:
> On Tue, May 11, 2010 at 2:25 PM, Jim Lucas  wrote:
>> Paul Halliday wrote:
>>> I have this:
>>>
>>> while ($row = mysql_fetch_array($theData[0])) {
>>>
>>> $col1[] = $row[0];
>>> $col2[] = lookup($row[1]); // this goes off and gets the country name.
>>>
>>> I then loop through col1 and col2 to produce something like this:
>>>
>>> 52ARMENIA
>>> 215   CANADA
>>> 57CANADA
>>> 261   COLOMBIA
>>> 53EGYPT
>>> 62INDIA
>>> 50INDIA
>>>
>>> Is there a way I can group these?
>>>
>>> Thanks!
>>>
>> Group them??
>>
>> How about this
>>
>> while ($row = mysql_fetch_array($theData[0])) {
>>
>>$col1[lookup($row[1])][] = $row[0];
>>
>> which, using the data you showed, will give you this
>>
>>
>> Array
>> (
>>[ARMENIA] => Array
>>(
>>[0] => 52
>>)
>>
>>[CANADA] => Array
>>(
>>[0] => 215
>>[1] => 57
>>)
>>
>>[COLOMBIA] => Array
>>(
>>[0] => 261
>>)
>>
>>[EGYPT] => Array
>>(
>>[0] => 53
>>)
>>
>>[INDIA] => Array
>>(
>>[0] => 62
>>[1] => 50
>>)
>>
>> )
>>
>> --
>> Jim Lucas
>>
>>   "Some men are born to greatness, some achieve greatness,
>>   and some have greatness thrust upon them."
>>
>> Twelfth Night, Act II, Scene V
>>by William Shakespeare
>>
> 
> I was actually hoping to have them arranged like:
> 
> $col1[0] = INDIA
> $col2[0] = 112
> $col1[1] = CANADA
> $col2[1] = 272
> ...
> 
> Thanks.
> 

Well, then take what I gave you and do this:

$group[lookup($row[1])][] = $row[0];

foreach ( $group AS $x => $y )
{
$col1[] = $x;
$col2[] = array_sum($y);
}


In the end you will end up with this

 $y )
{
$col1[] = $x;
$col2[] = array_sum($y);
}

print_r($col1);
print_r($col2);









-- 
Jim Lucas

   "Some men are born to greatness, some achieve greatness,
   and some have greatness thrust upon them."

Twelfth Night, Act II, Scene V
by William Shakespeare

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Re: [PHP] Array group and sum values.

[Paul Halliday]

On Tue, May 11, 2010 at 2:25 PM, Jim Lucas  wrote:
> Paul Halliday wrote:
>> I have this:
>>
>> while ($row = mysql_fetch_array($theData[0])) {
>>
>>     $col1[] = $row[0];
>>     $col2[] = lookup($row[1]); // this goes off and gets the country name.
>>
>> I then loop through col1 and col2 to produce something like this:
>>
>> 52    ARMENIA
>> 215   CANADA
>> 57    CANADA
>> 261   COLOMBIA
>> 53    EGYPT
>> 62    INDIA
>> 50    INDIA
>>
>> Is there a way I can group these?
>>
>> Thanks!
>>
>
> Group them??
>
> How about this
>
> while ($row = mysql_fetch_array($theData[0])) {
>
>    $col1[lookup($row[1])][] = $row[0];
>
> which, using the data you showed, will give you this
>
>
> Array
> (
>    [ARMENIA] => Array
>        (
>            [0] => 52
>        )
>
>    [CANADA] => Array
>        (
>            [0] => 215
>            [1] => 57
>        )
>
>    [COLOMBIA] => Array
>        (
>            [0] => 261
>        )
>
>    [EGYPT] => Array
>        (
>            [0] => 53
>        )
>
>    [INDIA] => Array
>        (
>            [0] => 62
>            [1] => 50
>        )
>
> )
>
> --
> Jim Lucas
>
>   "Some men are born to greatness, some achieve greatness,
>       and some have greatness thrust upon them."
>
> Twelfth Night, Act II, Scene V
>    by William Shakespeare
>

I was actually hoping to have them arranged like:

$col1[0] = INDIA
$col2[0] = 112
$col1[1] = CANADA
$col2[1] = 272
...

Thanks.

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Re: [PHP] Array group and sum values.

[Jim Lucas]

Paul Halliday wrote:
> I have this:
> 
> while ($row = mysql_fetch_array($theData[0])) {
> 
> $col1[] = $row[0];
> $col2[] = lookup($row[1]); // this goes off and gets the country name.
> 
> I then loop through col1 and col2 to produce something like this:
> 
> 52ARMENIA
> 215   CANADA
> 57CANADA
> 261   COLOMBIA
> 53EGYPT
> 62INDIA
> 50INDIA
> 
> Is there a way I can group these?
> 
> Thanks!
> 

Group them??

How about this

while ($row = mysql_fetch_array($theData[0])) {

$col1[lookup($row[1])][] = $row[0];

which, using the data you showed, will give you this


Array
(
[ARMENIA] => Array
(
[0] => 52
)

[CANADA] => Array
(
[0] => 215
[1] => 57
)

[COLOMBIA] => Array
(
[0] => 261
)

[EGYPT] => Array
(
[0] => 53
)

[INDIA] => Array
(
[0] => 62
[1] => 50
)

)

-- 
Jim Lucas

   "Some men are born to greatness, some achieve greatness,
   and some have greatness thrust upon them."

Twelfth Night, Act II, Scene V
by William Shakespeare

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RE: [PHP] Array to csv or excel in php

[Jay Blanchard]

[snip] to export them on an csv or excel format[/snip]

Stupid browser tricks

http://www.evolt.org/node/26896


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Re: [PHP] Array to csv or excel in php

[Ken Guest]

For non-simple data I have been using PEAR's File_CSV package. It's
proven itself very useful in
regards to not having to determine in my own code whether something
needs to be quoted etc etc - especially if the output CSV needs to be
wholly RFC 4180 compliant.

The documentation of it is rather minimal - at the moment you are
dependant on the test/example files and the API docs but grokking how
to use it is rather easy.


k.

On Mon, Apr 19, 2010 at 4:40 PM, Andrew Ballard  wrote:
> On Mon, Apr 19, 2010 at 11:14 AM, Peter Lind  wrote:
>> On 19 April 2010 17:00, Andrew Ballard  wrote:
>>> On Mon, Apr 19, 2010 at 9:45 AM, Manolis Vlachakis
   1. $save=split("[|;]",$listOfItems);

 and what i want i s after making some changes to the attributes on the 
 array
 above to export them on an csv or excel format
 but directly as a message to the browser ..
 i dont want it to be saved on the server ...

>>> Often when outputting csv, I usually do something like this:
>>>
>>> >>
>>> $fp = fopen('php://output', 'w') or die('Could not open stream');
>>>
>>> foreach ($data as $row) {
>>>    // Assumes that $row will be an array.
>>>    // Manipulate the data in $row if necessary.
>>>    fputcsv($fp, $row);
>>> }
>>>
>>> ?>
>>
>> An interesting idea. I'd do:
>>
>> echo implode(',', $row);
>>
>
> If it's very simple data that works, but it doesn't allow for the
> optional enclosure characters that fputcsv() uses in cases where a
> data element includes the column and/or row delimiter characters. I
> had originally written something using an array_map callback that did
> the optional enclosures as needed and then used echo implode() as you
> suggest, but found the solution I posted was shorter and faster. YMMV
>
> Andrew
>
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>
>



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Re: [PHP] Array to csv or excel in php

[Peter Lind]

On 19 April 2010 17:40, Andrew Ballard  wrote:
> On Mon, Apr 19, 2010 at 11:14 AM, Peter Lind  wrote:
>> On 19 April 2010 17:00, Andrew Ballard  wrote:
>>> On Mon, Apr 19, 2010 at 9:45 AM, Manolis Vlachakis
   1. $save=split("[|;]",$listOfItems);

 and what i want i s after making some changes to the attributes on the 
 array
 above to export them on an csv or excel format
 but directly as a message to the browser ..
 i dont want it to be saved on the server ...

>>> Often when outputting csv, I usually do something like this:
>>>
>>> >>
>>> $fp = fopen('php://output', 'w') or die('Could not open stream');
>>>
>>> foreach ($data as $row) {
>>>    // Assumes that $row will be an array.
>>>    // Manipulate the data in $row if necessary.
>>>    fputcsv($fp, $row);
>>> }
>>>
>>> ?>
>>
>> An interesting idea. I'd do:
>>
>> echo implode(',', $row);
>>
>
> If it's very simple data that works, but it doesn't allow for the
> optional enclosure characters that fputcsv() uses in cases where a
> data element includes the column and/or row delimiter characters. I
> had originally written something using an array_map callback that did
> the optional enclosures as needed and then used echo implode() as you
> suggest, but found the solution I posted was shorter and faster. YMMV
>
> Andrew
>

Yeah, was considering that point as well. I'd use the echo if the
array values are getting modified anyway. Otherwise your solution is
probably simpler.

Regards
Peter

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Re: [PHP] Array to csv or excel in php

[Andrew Ballard]

On Mon, Apr 19, 2010 at 11:14 AM, Peter Lind  wrote:
> On 19 April 2010 17:00, Andrew Ballard  wrote:
>> On Mon, Apr 19, 2010 at 9:45 AM, Manolis Vlachakis
>>>   1. $save=split("[|;]",$listOfItems);
>>>
>>> and what i want i s after making some changes to the attributes on the array
>>> above to export them on an csv or excel format
>>> but directly as a message to the browser ..
>>> i dont want it to be saved on the server ...
>>>
>> Often when outputting csv, I usually do something like this:
>>
>> >
>> $fp = fopen('php://output', 'w') or die('Could not open stream');
>>
>> foreach ($data as $row) {
>>    // Assumes that $row will be an array.
>>    // Manipulate the data in $row if necessary.
>>    fputcsv($fp, $row);
>> }
>>
>> ?>
>
> An interesting idea. I'd do:
>
> echo implode(',', $row);
>

If it's very simple data that works, but it doesn't allow for the
optional enclosure characters that fputcsv() uses in cases where a
data element includes the column and/or row delimiter characters. I
had originally written something using an array_map callback that did
the optional enclosures as needed and then used echo implode() as you
suggest, but found the solution I posted was shorter and faster. YMMV

Andrew

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Re: [PHP] Array to csv or excel in php

[Peter Lind]

On 19 April 2010 17:00, Andrew Ballard  wrote:
> On Mon, Apr 19, 2010 at 9:45 AM, Manolis Vlachakis
>  wrote:
>> hallo there everyone..
>> i got an array from my database
>> Help with Code 
>> Tags
>> *PHP Syntax* (Toggle Plain 
>> Text
>> )
>>
>>
>>   1. $save=split("[|;]",$listOfItems);
>>
>>
>> and what i want i s after making some changes to the attributes on the array
>> above to export them on an csv or excel format
>> but directly as a message to the browser ..
>> i dont want it to be saved on the server ...
>> what i cant understand from the examples i found on the net ..
>> is how to handle the files and which are created cause
>> i just have the array in a php file nothing more...
>>
>>
>> another thing i have in mind is to export from the ldap server the files
>> directly but seems to me as the wrong way to do it
>>
>> thanks
>>
>
> Often when outputting csv, I usually do something like this:
>
> 
> $fp = fopen('php://output', 'w') or die('Could not open stream');
>
> foreach ($data as $row) {
>    // Assumes that $row will be an array.
>    // Manipulate the data in $row if necessary.
>    fputcsv($fp, $row);
> }
>
> ?>

An interesting idea. I'd do:

echo implode(',', $row);

regards
Peter

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Re: [PHP] Array to csv or excel in php

[Andrew Ballard]

On Mon, Apr 19, 2010 at 9:45 AM, Manolis Vlachakis
 wrote:
> hallo there everyone..
> i got an array from my database
> Help with Code 
> Tags
> *PHP Syntax* (Toggle Plain 
> Text
> )
>
>
>   1. $save=split("[|;]",$listOfItems);
>
>
> and what i want i s after making some changes to the attributes on the array
> above to export them on an csv or excel format
> but directly as a message to the browser ..
> i dont want it to be saved on the server ...
> what i cant understand from the examples i found on the net ..
> is how to handle the files and which are created cause
> i just have the array in a php file nothing more...
>
>
> another thing i have in mind is to export from the ldap server the files
> directly but seems to me as the wrong way to do it
>
> thanks
>

Often when outputting csv, I usually do something like this:



So far, it has worked pretty well and is much faster than any other
way I have found to output the CSV data by iterating through the
arrays manually.

Andrew

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RE: [PHP] Array differences

[tedd]

At 9:37 AM -0600 4/14/10, Ashley M. Kirchner wrote:

No because that only does a one-way comparison.  It only tells me what's
missing from $array2.  I need it from both arrays.  That's why I'm comparing
1 versus 2, then 2 versus 1, and then doing a merge/unique on the result.

-snip-
$array1 = array(1, 2, 3, 4, 5, 6);
$array2 = array(1, 3, 2, 8, 9);
$diff1  = array_diff($array1, $array2);
$diff2  = array_diff($array2, $array1);
$result = array_unique(array_merge($diff1, $diff2));

=> (4, 5, 6, 8, 9)

This second $result is what I want.  So far I haven't noticed any problems
doing it this way ... yet.  I'm sure someone will tell me otherwise.

Ash


Ash:

Looks good to me. But note the indexes of the result.

You might want to:

$array1 = array(1, 2, 3, 4, 5, 6, 7, 7, 7, 7);
$array2 = array(1, 2, 3, 8, 9);
$diff1  = array_diff($array1, $array2);
$diff2  = array_diff($array2, $array1);

$diff1 = array_unique($diff1);
$diff2 = array_unique($diff2);
$result = array_merge($diff1, $diff2);

Cheers,

tedd

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RE: [PHP] Array differences

[Ashley M. Kirchner]

> -Original Message-
> From: lala [mailto:l...@mail.theorb.net]
> Sent: Wednesday, April 14, 2010 10:15 AM
> To: Ashley M. Kirchner
> Cc: php-general@lists.php.net
> Subject: Re: [PHP] Array differences
> 
> Ashley M. Kirchner wrote:
> >
> > $array1 = array(1, 2, 3, 4, 5, 6);
> > $array2 = array(1, 3, 2, 8, 9);
> > $diff1  = array_diff($array1, $array2);
> > $diff2  = array_diff($array2, $array1);
> > $result = array_unique(array_merge($diff1, $diff2));
> >
> > => (4, 5, 6, 8, 9)
> 
> Hi Ash,
> 
> Isn't the array_unique() unnecessary?
> 
> Mike


Thinking about it, it should be unnecessary, but at the same time I want to 
absolutely sure that I get unique values out of the two diffs.

Ash


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Re: [PHP] Array differences

[lala]

Ashley M. Kirchner wrote:


$array1 = array(1, 2, 3, 4, 5, 6);
$array2 = array(1, 3, 2, 8, 9);
$diff1  = array_diff($array1, $array2);
$diff2  = array_diff($array2, $array1);
$result = array_unique(array_merge($diff1, $diff2));

=> (4, 5, 6, 8, 9)


Hi Ash,

Isn't the array_unique() unnecessary?

Mike

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RE: [PHP] Array differences

[Ashley M. Kirchner]

No because that only does a one-way comparison.  It only tells me what's
missing from $array2.  I need it from both arrays.  That's why I'm comparing
1 versus 2, then 2 versus 1, and then doing a merge/unique on the result.

$array1 = array(1, 2, 3, 4, 5, 6);
$array2 = array(1, 3, 2, 8, 9);
$result = array_diff(array_unique($array1 + $array2),
array_intersect($array1, $array2));

=> (4, 5, 6)


Versus:

$array1 = array(1, 2, 3, 4, 5, 6);
$array2 = array(1, 3, 2, 8, 9);
$diff1  = array_diff($array1, $array2);
$diff2  = array_diff($array2, $array1);
$result = array_unique(array_merge($diff1, $diff2));

=> (4, 5, 6, 8, 9)

This second $result is what I want.  So far I haven't noticed any problems
doing it this way ... yet.  I'm sure someone will tell me otherwise.

Ash

> -Original Message-
> From: Ryan Sun [mailto:ryansu...@gmail.com]
> Sent: Wednesday, April 14, 2010 8:45 AM
> To: a...@ashleysheridan.co.uk
> Cc: Ashley M. Kirchner; php-general@lists.php.net
> Subject: Re: [PHP] Array differences
> 
> Maybe this one works?
> array_diff(array_unique($array1 + $array2), array_intersect($array1,
> $array2))
> 
> On Wed, Apr 14, 2010 at 4:39 AM, Ashley Sheridan
>  wrote:
> > On Tue, 2010-04-13 at 23:01 -0600, Ashley M. Kirchner wrote:
> >
> >> I have the following scenario:
> >>
> >>
> >>
> >>      $array1 = array("12", "34", "56", "78", "90");
> >>
> >>      $array2 = array("12", "23", "56", "78", "89");
> >>
> >>
> >>
> >>      $result = array_diff($array1, $array2);
> >>
> >>
> >>
> >>      print_r($result);
> >>
> >>
> >>
> >>
> >>
> >> This returns:
> >>
> >>
> >>
> >>      Array
> >>
> >>      (
> >>
> >>          [1] => 34
> >>
> >>          [4] => 90
> >>
> >>      )
> >>
> >>
> >>
> >>
> >>
> >> However what I really want is a two-way comparison.  I want elements
> that
> >> don't exist in either to be returned:
> >>
> >>
> >>
> >> 34 and 90 because they don't exist in $array2, AND 23 and 89 because
> they
> >> don't exist in $array1.  So, is that a two step process of first
> doing an
> >> array_diff($array1, $array2) then reverse it by doing
> array_diff($array2,
> >> $array1) and merge/unique the results?  Any caveats with that?
> >>
> >>
> >>
> >>      $array1 = array("12", "34", "56", "78", "90");
> >>
> >>      $array2 = array("12", "23", "56", "78", "89");
> >>
> >>
> >>
> >>      $diff1 = array_diff($array1, $array2);
> >>
> >>      $diff2 = array_diff($array2, $array1);
> >>
> >>
> >>
> >>      $result = array_unique(array_merge($diff1, $diff2));
> >>
> >>
> >>
> >>      print_r($result);
> >>
> >>
> >>
> >>
> >>
> >> -- A
> >>
> >
> >
> > I don't see any problems with doing it that way. This will only work
> as
> > you intended if both arrays have the same number of elements I
> believe,
> > otherwise you might end up with a situation where your final array
> has
> > duplicates of the same number:
> >
> > $array1 = $array(1, 2, 3, 4, 5, 6);
> > $array2 = $aray(1, 3, 2, 5);
> >
> > Thanks,
> > Ash
> > http://www.ashleysheridan.co.uk
> >
> >
> >


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Re: [PHP] Array differences

[Ryan Sun]

Maybe this one works?
array_diff(array_unique($array1 + $array2), array_intersect($array1, $array2))

On Wed, Apr 14, 2010 at 4:39 AM, Ashley Sheridan
 wrote:
> On Tue, 2010-04-13 at 23:01 -0600, Ashley M. Kirchner wrote:
>
>> I have the following scenario:
>>
>>
>>
>>      $array1 = array("12", "34", "56", "78", "90");
>>
>>      $array2 = array("12", "23", "56", "78", "89");
>>
>>
>>
>>      $result = array_diff($array1, $array2);
>>
>>
>>
>>      print_r($result);
>>
>>
>>
>>
>>
>> This returns:
>>
>>
>>
>>      Array
>>
>>      (
>>
>>          [1] => 34
>>
>>          [4] => 90
>>
>>      )
>>
>>
>>
>>
>>
>> However what I really want is a two-way comparison.  I want elements that
>> don't exist in either to be returned:
>>
>>
>>
>> 34 and 90 because they don't exist in $array2, AND 23 and 89 because they
>> don't exist in $array1.  So, is that a two step process of first doing an
>> array_diff($array1, $array2) then reverse it by doing array_diff($array2,
>> $array1) and merge/unique the results?  Any caveats with that?
>>
>>
>>
>>      $array1 = array("12", "34", "56", "78", "90");
>>
>>      $array2 = array("12", "23", "56", "78", "89");
>>
>>
>>
>>      $diff1 = array_diff($array1, $array2);
>>
>>      $diff2 = array_diff($array2, $array1);
>>
>>
>>
>>      $result = array_unique(array_merge($diff1, $diff2));
>>
>>
>>
>>      print_r($result);
>>
>>
>>
>>
>>
>> -- A
>>
>
>
> I don't see any problems with doing it that way. This will only work as
> you intended if both arrays have the same number of elements I believe,
> otherwise you might end up with a situation where your final array has
> duplicates of the same number:
>
> $array1 = $array(1, 2, 3, 4, 5, 6);
> $array2 = $aray(1, 3, 2, 5);
>
> Thanks,
> Ash
> http://www.ashleysheridan.co.uk
>
>
>

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Re: [PHP] Array differences

[Ashley M. Kirchner]

On 4/14/2010 2:39 AM, Ashley Sheridan wrote:

On Tue, 2010-04-13 at 23:01 -0600, Ashley M. Kirchner wrote:

  $array1 = array("12", "34", "56", "78", "90");
  $array2 = array("12", "23", "56", "78", "89");

  $diff1 = array_diff($array1, $array2);
  $diff2 = array_diff($array2, $array1);

  $result = array_unique(array_merge($diff1, $diff2));

  print_r($result);
 


I don't see any problems with doing it that way. This will only work 
as you intended if both arrays have the same number of elements I 
believe, otherwise you might end up with a situation where your final 
array has duplicates of the same number:


$array1 = $array(1, 2, 3, 4, 5, 6);
$array2 = $aray(1, 3, 2, 5);


Wouldn't array_unique() take care of that though?  Your example 
above returns 4 and 6, which would be correct.


A

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Re: [PHP] Array differences

[Rene Veerman]

On Wed, Apr 14, 2010 at 12:03 PM, Nathan Rixham  wrote:
> Ashley Sheridan wrote:
>> On Tue, 2010-04-13 at 23:01 -0600, Ashley M. Kirchner wrote:
>>>
>>> However what I really want is a two-way comparison.  I want elements that
>>> don't exist in either to be returned:
>>>
>>
>>
>> I don't see any problems with doing it that way.
>
> By some freak chance I made an array diff class about 2 weeks ago which
> covers what you need. attached :)
>
> usage:
>
> $diff = new ArrayDiff( $old , $new );
> $diff->l; // deleted items
> $diff->r; // inserted items
> $diff->u; // unchanged items
>
> The script is optimised for huge arrays, thus it's slower for small
> arrays than the usual array_diff but with large arrays it's quicker.
>
> Regards
>
> Nathan
>
>
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>

nice one :) i'll put it in a work-preperation folder for
htmlMicroscope then, one of these days :)

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