Re: [PHP] Str to Int
Quoting [EMAIL PROTECTED]:
3. if ($cardID = '' || is_int($cardID))
As someone mentioned, $cardID = '' makes an assignment, doesn't
test for true/false. Change to $cardID == ''. And this statement
SHOULD come up true as a whole because $cardID = '' should always
be true (unless the assignment fails). So regardless of
is_int($cardID) succeeding or failing, $cardID = '' should be true
so this statement will always be true.
A trick I read about during my time of learning best practices: if
comparing against a literal or constant, place the literal or constant
on the left side of the expression. For example,
if ('' == $cardID) {
instead of
if ($cardID == '') {
That way, if you accidentally use = instead of ==, you should get
an error because you can't assign something to a literal or constant.
Hope this helps somebody,
Rick
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Rick Emery
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you will always long to return
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[PHP] Str to Int
Hi, I need to do a type cast from string to int in folllowing code: [php] getPIN cardID='.intval(trim($cardID)).' quantity=1 / [/php] I need $cardID have converted to int. I thought it should work that way but it does not! But it's working if I'm putting [php] getPIN cardID=180 quantity=1 / [/php] in there. I got card ID as a var that is passed as get like: [php] $cardID = $HTTP_GET_VARS[cardID]; [/php] Can anyone help me in that issue? Thank you! __ Ron Eggler Intern 866-999-4179 www.paykiosks.net
Re: [PHP] Str to Int
You should be able to typecast the variable like so: $cardID = (int)$cardID; You can also check which type it is showing up as with the function gettype(): http://www.php.net/manual/en/function.gettype.php Optionally you could use settype() to change the type of the variable: http://www.php.net/manual/en/function.settype.php HTH -- Ray Hauge Programmer/Systems Administrator American Student Loan Services http://www.americanstudentloan.com 1.800.575.1099 On Friday 20 January 2006 03:53 pm, Ron Eggler (Paykiosks) wrote: Hi, I need to do a type cast from string to int in folllowing code: [php] getPIN cardID='.intval(trim($cardID)).' quantity=1 / [/php] I need $cardID have converted to int. I thought it should work that way but it does not! But it's working if I'm putting [php] getPIN cardID=180 quantity=1 / [/php] in there. I got card ID as a var that is passed as get like: [php] $cardID = $HTTP_GET_VARS[cardID]; [/php] Can anyone help me in that issue? Thank you! __ Ron Eggler Intern 866-999-4179 www.paykiosks.net -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Str to Int
You probably want to do an is_int() first... After that, you know it's an int and treat it that way. Why do you need to typecast it? BTW, change $cardID = $HTTP_GET_VARS[cardID]; to $cardID = $_GET['cardID']; for PHP5 compatibility... ;-) Gerry On 1/20/06, Ron Eggler (Paykiosks) [EMAIL PROTECTED] wrote: Hi, I need to do a type cast from string to int in folllowing code: [php] getPIN cardID='.intval(trim($cardID)).' quantity=1 / [/php] I need $cardID have converted to int. I thought it should work that way but it does not! But it's working if I'm putting [php] getPIN cardID=180 quantity=1 / [/php] in there. I got card ID as a var that is passed as get like: [php] $cardID = $HTTP_GET_VARS[cardID]; [/php] Can anyone help me in that issue? Thank you! __ Ron Eggler Intern 866-999-4179 www.paykiosks.net -- Gerry http://portal.danen.org/
Re: [PHP] Str to Int
Am Freitag, den 20.01.2006, 16:08 -0700 schrieb Gerry Danen:
You probably want to do an is_int() first...
After that, you know it's an int and treat it that way. Why do you
need to typecast it?
BTW, change $cardID = $HTTP_GET_VARS[cardID]; to $cardID =
$_GET['cardID']; for PHP5 compatibility... ;-)
Gerry
Hey, it seems to be recognied by is_int() as integer. I have following
code:
[php]
if ($HTTP_GET_VARS) // if some GET variables were passed on,...
{
switch ($HTTP_GET_VARS['action'])// recognize the get-var 'action'
{
case reserve: // it says, 'reserve PINs'
$cardID = $HTTP_GET_VARS['cardID']; // get cardID which was passed by GET
as well
if ($cardID=''||is_int($cardID)) // unless,
{
$cardID = intval($cardID.trim());
echo bERROR, cardID='' or cardID is no integer!/bbr\n; //print
Error
exit(0); //and leave
}
echo reservebr\n; // Variables were okay, so go ahead with the
reserving
/ [reserve SKU] /
$inputdata = 'xs:request xmlns:xs=\'urn:pinXpressSchema\'
version=\'1.5\' langCode=\'en\''.$n.'
DEALERinfo aspName='.$aspName.'
dealerName='.$dealerName.'
posName='.$posName.'
posPassword='.$posPassword.'
userName='.$userName.'
userPassword='.$userPassword.'/
reservePINs
getPIN cardID='.intval(trim($cardID)).' quantity=1 /
/reservePINs
/xs:request';
/ [/reserve SKU] ***/
break;
[/php]
it doesn't work that way but if I replace ['.intval(trim($cardID)).']
with [180] (everything between the []-brakets) it seems to work and
cardID was passed with the URL:
http://localhost/ewi.php?action=reservecardID=180
So what the hell is going wrong?
Thank you!
chEErs roN
On 1/20/06, Ron Eggler (Paykiosks) [EMAIL PROTECTED] wrote:
Hi,
I need to do a type cast from string to int in folllowing
code:
[php]
getPIN cardID='.intval(trim($cardID)).' quantity=1 /
[/php]
I need $cardID have converted to int. I thought it should work
that way
but it does not!
But it's working if I'm putting
[php]
getPIN cardID=180 quantity=1 /
[/php]
in there. I got card ID as a var that is passed as get like:
[php]
$cardID = $HTTP_GET_VARS[cardID];
[/php]
Can anyone help me in that issue? Thank you!
__
Ron Eggler
Intern
866-999-4179
www.paykiosks.net
--
Gerry
http://portal.danen.org/
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Re: [PHP] Str to Int
if ($cardID=''||is_int($cardID)) Two problems with that statement: First of all, this statement _sets_ cardID to '', and then (I think) returns a false value since '' doesn't evaluate to true. You probably wanted ==. Second of all, now that $cardID is '', it certainly isn't an int. It isn't an int, and it wouldn't be an int if you fixed that statement because is_int only tests if it is, actually, an integer. $HTTP_GET_VARS['cardID'] could be '123', but it can't be 123 and so that will be false. From the PHP manual: Note: To test if a variable is a number or a numeric string (such as form input, which is always a string), you must use is_numeric(). -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Str to Int
well I don't well understand the problem hope these two snippets can solve your problem: i tested them seems fine file 1 form.php html head meta http-equiv=Content-Language content=it meta http-equiv=Content-Type content=text/html; charset=windows-1252 titleenter tour code/title /head body pnbsp;/p penter tour code/p form method=POST action=get_card.php table border=1 width=47% id=table1 tr td width=186user/td tdinput type=text name=txt_user size=20/td /tr tr td width=186code/td tdinput type=text name=txt_id size=20/td /tr tr td colspan=2 p align=centerinput type=submit value=Invia name=B1 input type=reset value=Reimposta name=B2/td /tr /table p dir=ltrnbsp;/p /form pnbsp;/p /body /html file 2 -- get_card.php html head meta http-equiv=Content-Type content=text/html; charset=windows-1252 titleNuova pagina 1/title /head body ?php print string value:::.$_POST['txt_id'].br; $int_id=intval(trim($_POST['txt_id'])); print integer value:::$int_id.br; print type returned:.gettype($int_id).br; ? /body /html 2006/1/20, Ron Eggler (Paykiosks) [EMAIL PROTECTED]: Hi, I need to do a type cast from string to int in folllowing code: [php] getPIN cardID='.intval(trim($cardID)).' quantity=1 / [/php] I need $cardID have converted to int. I thought it should work that way but it does not! But it's working if I'm putting [php] getPIN cardID=180 quantity=1 / [/php] in there. I got card ID as a var that is passed as get like: [php] $cardID = $HTTP_GET_VARS[cardID]; [/php] Can anyone help me in that issue? Thank you! __ Ron Eggler Intern 866-999-4179 www.paykiosks.net
Re: [PHP] Str to Int
Am Freitag, den 20.01.2006, 18:28 -0500 schrieb comex: if ($cardID=''||is_int($cardID)) Two problems with that statement: First of all, this statement _sets_ cardID to '', and then (I think) returns a false value since '' doesn't evaluate to true. You probably wanted ==. hOOps that's right, shit, haven't seen that..hm okay, it works fine now, thanks again! Second of all, now that $cardID is '', it certainly isn't an int. It isn't an int, and it wouldn't be an int if you fixed that statement because is_int only tests if it is, actually, an integer. $HTTP_GET_VARS['cardID'] could be '123', but it can't be 123 and so that will be false. From the PHP manual: Note: To test if a variable is a number or a numeric string (such as form input, which is always a string), you must use is_numeric(). -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Str to Int
Ok, some good points where made already, but let's pull it all together:
1. You should get in the habit of using $_GET[] instead of $HTTP_GET_VARS..
minor thing but worth noting (info at http://us2.php.net/reserved.variables)
2. case reserve:
This, I believe, will treate reserve as a constant. Change it to:
case reserve:
to make it work properly.
3. if ($cardID = '' || is_int($cardID))
As someone mentioned, $cardID = '' makes an assignment, doesn't test for
true/false. Change to $cardID == ''. And this statement SHOULD come up true
as a whole because $cardID = '' should always be true (unless the assignment
fails). So regardless of is_int($cardID) succeeding or failing, $cardID = ''
should be true so this statement will always be true.
4. $cardID = intval($cardID.trim())
Mixing PHP and Javascript? (or another language?). Try:
$cardID = intval($cardID);
trim() probably isn't necessary unless your variable starts with letters.
intval(123 main street) should give you 123.
intval(main street suite 400) should give you 0 (zero)
5. intval() returns zero if it's a bad entry, so is_int(intval($anything))
should always be true I believe. Just something to keep in mind in case
$cardID zero is actually something you want to use. In that case you don't
want to use $cardID = intval($whatever) because you'll end up with zero.
6. exit(0)
Again remnants from another language. exit() works in PHP but no need to
return a zero return value. exit() is fine.
7. echo reserve is going to output reserve, not the value of a variable
try echo $reserve;
Also.. it's probably not necessary, but I usually enclose my switch statements
in braces just to keep it clear what's part of the switch.
switch ($somevar) {
case val1:
echo Value one;
break;
case val2:
echo Value two;
break;
default:
echo No valid value;
break;
}
Good luck Ron! You'll get ahold of this stuff soon enough. Looks like you
have some experience in other languages (and some of it will work fine in PHP..
it's very forgiving and flexible, but some of it will need to be tweaked).
Let us know if you have further questions.
-TG
= = = Original message = = =
[php]
if ($HTTP_GET_VARS) // if some GET variables were passed on,...
switch ($HTTP_GET_VARS['action'])// recognize the get-var 'action'
case reserve: // it says, 'reserve PINs'
$cardID = $HTTP_GET_VARS['cardID']; // get cardID which was passed by GET
as well
if ($cardID=''||is_int($cardID)) // unless,
$cardID = intval($cardID.trim());
echo bERROR, cardID='' or cardID is no integer!/bbr\n; //print
Error
exit(0); //and leave
echo reservebr\n; // Variables were okay, so go ahead with the
reserving
/ [reserve SKU] /
$inputdata = 'xs:request xmlns:xs=\'urn:pinXpressSchema\'
version=\'1.5\' langCode=\'en\''.$n.'
DEALERinfo aspName='.$aspName.'
~ dealerName='.$dealerName.'
posName='.$posName.'
posPassword='.$posPassword.'
userName='.$userName.'
userPassword='.$userPassword.'/
reservePINs
getPIN cardID='.intval(trim($cardID)).' quantity=1 /
/reservePINs
/xs:request';
/ [/reserve SKU] ***/
break;
[/php]
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