RE: [PHP] Multidimensional array construction
I haven't seen the rest of this thread so this may be irrelevant ... but
foreach($array as $key=$value)
{ $array[$key] = fred;
}
... alters an array while traversing it. Your case seems more complicated
but I would have thought nesting foreaches in this way would allow you to
access the original element.
foreach($array as $key1=$value1)
{ foreach($array as $key2=$value2)
{ $array[$key1][$key2] = fred;
}
}
Tim
http://www.chessish.com http://www.chessish.com
--
From: Darren Gamble [SMTP:[EMAIL PROTECTED]]
Sent: 04 December 2001 15:22
To: PHP List; 'Mike Eheler'
Subject: RE: [PHP] Multidimensional array construction
Good day,
Thanks to all who replied.
This isn't quite what I needed, though. I _have_ the array (or
delimited
list would do, too). What I need to do is _CREATE_ the array
element
$myarray['foo']['bar']['green']['apple'] and set it to some value.
Actually
traversing said array isn't hard, as you pointed out.
foreach() doesn't work, as it just uses a copy of the original
array. I
think there might be some way to use variable references, but I
haven't
gotten one to work yet.
Any other suggestions?
Darren Gamble
Planner, Regional Services
Shaw Cablesystems GP
630 - 3rd Avenue SW
Calgary, Alberta, Canada
T2P 4L4
(403) 781-4948
-Original Message-
From: Mike Eheler [mailto:[EMAIL PROTECTED]]
Sent: Monday, December 03, 2001 5:30 PM
To: Martin Towell
Cc: 'Darren Gamble'; PHP List
Subject: Re: [PHP] Multidimensional array construction
I did something like this recently. Here's how I did it:
$some_value1 = 'Hello World';
$myarray['foo']['bar']['green']['apple'] = $some_value1;
function get_opt($arr, $keys,$sep=':') {
$var = $arr;
$tmp = split($sep,$keys);
foreach ($tmp as $k = $v) {
$var = $var[$v];
}
if (isset($var)) return $var;
return '';
}
echo get_opt($myarray, 'foo:bar:green:apple');
It needs refining, but it should do the job. That's entirely from
memory, mind you.. it should work, though.
Mike
Martin Towell wrote:
I was thinking that you could use a pointer to var, eg:
$var = 'myarray[foo][bar][red][apple]';
// this would obviously be created dynamically, hard coded for
testing
$$var = $some_value1;
echo $myarray[foo][bar][red][apple];
but when I tried it, it didn't work :(
looks like eval() to the rescue...
-Original Message-
From: Darren Gamble [mailto:[EMAIL PROTECTED]]
Sent: Tuesday, December 04, 2001 10:37 AM
To: PHP List
Subject: [PHP] Multidimensional array construction
Here's a question for the list:
I have a two-dimensional array; essentially a list of arrays. Each
element
(an array) can have any number of elements. As a small example:
(
( foo , bar , red , apple ),
( foo , bar , red , car),
( foo , green )
)
I would like to traverse this array and place all of the data into
another
multidimensional array. The following statements illustrate how
I'd like
to
do this from the example:
$myarray[foo][bar][red][apple] = $some_value1;
$myarray[foo][bar][red][car] = $some_value2;
$myarray[foo][green] = $some_value3;
Is there any way to easily do this in PHP? I could cheat and use
eval(),
but there is probably a better way. I have thought of using each()
or
references, but nothing has come to mind so far.
Any ideas? Should I just use eval() ?
Darren Gamble
Planner, Regional Services
Shaw Cablesystems GP
630 - 3rd Avenue SW
Calgary, Alberta, Canada
T2P 4L4
(403) 781-4948
--
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To unsubscribe, e-mail: [EMAIL PROTECTED]
For additional commands, e-mail: [EMAIL PROTECTED]
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RE: [PHP] Multidimensional array construction
Good day,
Thanks to all who replied.
This isn't quite what I needed, though. I _have_ the array (or delimited
list would do, too). What I need to do is _CREATE_ the array element
$myarray['foo']['bar']['green']['apple'] and set it to some value. Actually
traversing said array isn't hard, as you pointed out.
foreach() doesn't work, as it just uses a copy of the original array. I
think there might be some way to use variable references, but I haven't
gotten one to work yet.
Any other suggestions?
Darren Gamble
Planner, Regional Services
Shaw Cablesystems GP
630 - 3rd Avenue SW
Calgary, Alberta, Canada
T2P 4L4
(403) 781-4948
-Original Message-
From: Mike Eheler [mailto:[EMAIL PROTECTED]]
Sent: Monday, December 03, 2001 5:30 PM
To: Martin Towell
Cc: 'Darren Gamble'; PHP List
Subject: Re: [PHP] Multidimensional array construction
I did something like this recently. Here's how I did it:
$some_value1 = 'Hello World';
$myarray['foo']['bar']['green']['apple'] = $some_value1;
function get_opt($arr, $keys,$sep=':') {
$var = $arr;
$tmp = split($sep,$keys);
foreach ($tmp as $k = $v) {
$var = $var[$v];
}
if (isset($var)) return $var;
return '';
}
echo get_opt($myarray, 'foo:bar:green:apple');
It needs refining, but it should do the job. That's entirely from
memory, mind you.. it should work, though.
Mike
Martin Towell wrote:
I was thinking that you could use a pointer to var, eg:
$var = 'myarray[foo][bar][red][apple]';
// this would obviously be created dynamically, hard coded for testing
$$var = $some_value1;
echo $myarray[foo][bar][red][apple];
but when I tried it, it didn't work :(
looks like eval() to the rescue...
-Original Message-
From: Darren Gamble [mailto:[EMAIL PROTECTED]]
Sent: Tuesday, December 04, 2001 10:37 AM
To: PHP List
Subject: [PHP] Multidimensional array construction
Here's a question for the list:
I have a two-dimensional array; essentially a list of arrays. Each element
(an array) can have any number of elements. As a small example:
(
( foo , bar , red , apple ),
( foo , bar , red , car),
( foo , green )
)
I would like to traverse this array and place all of the data into another
multidimensional array. The following statements illustrate how I'd like
to
do this from the example:
$myarray[foo][bar][red][apple] = $some_value1;
$myarray[foo][bar][red][car] = $some_value2;
$myarray[foo][green] = $some_value3;
Is there any way to easily do this in PHP? I could cheat and use eval(),
but there is probably a better way. I have thought of using each() or
references, but nothing has come to mind so far.
Any ideas? Should I just use eval() ?
Darren Gamble
Planner, Regional Services
Shaw Cablesystems GP
630 - 3rd Avenue SW
Calgary, Alberta, Canada
T2P 4L4
(403) 781-4948
--
PHP General Mailing List (http://www.php.net/)
To unsubscribe, e-mail: [EMAIL PROTECTED]
For additional commands, e-mail: [EMAIL PROTECTED]
To contact the list administrators, e-mail: [EMAIL PROTECTED]
RE: [PHP] Multidimensional array construction
I was thinking that you could use a pointer to var, eg: $var = 'myarray[foo][bar][red][apple]'; // this would obviously be created dynamically, hard coded for testing $$var = $some_value1; echo $myarray[foo][bar][red][apple]; but when I tried it, it didn't work :( looks like eval() to the rescue... -Original Message- From: Darren Gamble [mailto:[EMAIL PROTECTED]] Sent: Tuesday, December 04, 2001 10:37 AM To: PHP List Subject: [PHP] Multidimensional array construction Here's a question for the list: I have a two-dimensional array; essentially a list of arrays. Each element (an array) can have any number of elements. As a small example: ( ( foo , bar , red , apple ), ( foo , bar , red , car), ( foo , green ) ) I would like to traverse this array and place all of the data into another multidimensional array. The following statements illustrate how I'd like to do this from the example: $myarray[foo][bar][red][apple] = $some_value1; $myarray[foo][bar][red][car] = $some_value2; $myarray[foo][green] = $some_value3; Is there any way to easily do this in PHP? I could cheat and use eval(), but there is probably a better way. I have thought of using each() or references, but nothing has come to mind so far. Any ideas? Should I just use eval() ? Darren Gamble Planner, Regional Services Shaw Cablesystems GP 630 - 3rd Avenue SW Calgary, Alberta, Canada T2P 4L4 (403) 781-4948 -- PHP General Mailing List (http://www.php.net/) To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] To contact the list administrators, e-mail: [EMAIL PROTECTED]
RE: [PHP] Multidimensional array construction
This might be interesting ... The function extract() allows you to extract all values from an array and prefix them with a specified string. What I didn't know until just a second ago was that you can supply a function as a string, so ... $my_array = array(a,b,c,d,array(a,b,c,d)); $i = 1; extract($my_array,EXTR_PREFIX_ALL,SOMEVAL.$i++); print pre; print $SOMEVAL_1; print $SOMEVAL_2; print $SOMEVAL_3; print $SOMEVAL_4; print $SOMEVAL_5; print /pre; ... will produce: a b c d [Array] Which is cool. Not quite what you wanted, but maybe you could run with it. Jim -Original Message- From: Darren Gamble [mailto:[EMAIL PROTECTED]] Sent: Tuesday, December 04, 2001 10:37 AM To: PHP List Subject: [PHP] Multidimensional array construction Here's a question for the list: I have a two-dimensional array; essentially a list of arrays. Each element (an array) can have any number of elements. As a small example: ( ( foo , bar , red , apple ), ( foo , bar , red , car), ( foo , green ) ) I would like to traverse this array and place all of the data into another multidimensional array. The following statements illustrate how I'd like to do this from the example: $myarray[foo][bar][red][apple] = $some_value1; $myarray[foo][bar][red][car] = $some_value2; $myarray[foo][green] = $some_value3; Is there any way to easily do this in PHP? I could cheat and use eval(), but there is probably a better way. I have thought of using each() or references, but nothing has come to mind so far. Any ideas? Should I just use eval() ? Darren Gamble Planner, Regional Services Shaw Cablesystems GP 630 - 3rd Avenue SW Calgary, Alberta, Canada T2P 4L4 (403) 781-4948 -- PHP General Mailing List (http://www.php.net/) To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] To contact the list administrators, e-mail: [EMAIL PROTECTED] -- Jim Musil - Multimedia Programmer Nettmedia - 212-629-0004 [EMAIL PROTECTED] -- PHP General Mailing List (http://www.php.net/) To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] To contact the list administrators, e-mail: [EMAIL PROTECTED]
RE: [PHP] Multidimensional array construction
oops. That's not correct. I wish it was though! ;) This might be interesting ... The function extract() allows you to extract all values from an array and prefix them with a specified string. What I didn't know until just a second ago was that you can supply a function as a string, so ... $my_array = array(a,b,c,d,array(a,b,c,d)); $i = 1; extract($my_array,EXTR_PREFIX_ALL,SOMEVAL.$i++); print pre; print $SOMEVAL_1; print $SOMEVAL_2; print $SOMEVAL_3; print $SOMEVAL_4; print $SOMEVAL_5; print /pre; ... will produce: a b c d [Array] Which is cool. Not quite what you wanted, but maybe you could run with it. Jim -Original Message- From: Darren Gamble [mailto:[EMAIL PROTECTED]] Sent: Tuesday, December 04, 2001 10:37 AM To: PHP List Subject: [PHP] Multidimensional array construction Here's a question for the list: I have a two-dimensional array; essentially a list of arrays. Each element (an array) can have any number of elements. As a small example: ( ( foo , bar , red , apple ), ( foo , bar , red , car), ( foo , green ) ) I would like to traverse this array and place all of the data into another multidimensional array. The following statements illustrate how I'd like to do this from the example: $myarray[foo][bar][red][apple] = $some_value1; $myarray[foo][bar][red][car] = $some_value2; $myarray[foo][green] = $some_value3; Is there any way to easily do this in PHP? I could cheat and use eval(), but there is probably a better way. I have thought of using each() or references, but nothing has come to mind so far. Any ideas? Should I just use eval() ? Darren Gamble Planner, Regional Services Shaw Cablesystems GP 630 - 3rd Avenue SW Calgary, Alberta, Canada T2P 4L4 (403) 781-4948 -- PHP General Mailing List (http://www.php.net/) To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] To contact the list administrators, e-mail: [EMAIL PROTECTED] -- Jim Musil - Multimedia Programmer Nettmedia - 212-629-0004 [EMAIL PROTECTED] -- PHP General Mailing List (http://www.php.net/) To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] To contact the list administrators, e-mail: [EMAIL PROTECTED] -- Jim Musil - Multimedia Programmer Nettmedia - 212-629-0004 [EMAIL PROTECTED] -- PHP General Mailing List (http://www.php.net/) To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] To contact the list administrators, e-mail: [EMAIL PROTECTED]
Re: [PHP] Multidimensional array construction
I did something like this recently. Here's how I did it:
$some_value1 = 'Hello World';
$myarray['foo']['bar']['green']['apple'] = $some_value1;
function get_opt($arr, $keys,$sep=':') {
$var = $arr;
$tmp = split($sep,$keys);
foreach ($tmp as $k = $v) {
$var = $var[$v];
}
if (isset($var)) return $var;
return '';
}
echo get_opt($myarray, 'foo:bar:green:apple');
It needs refining, but it should do the job. That's entirely from
memory, mind you.. it should work, though.
Mike
Martin Towell wrote:
I was thinking that you could use a pointer to var, eg:
$var = 'myarray[foo][bar][red][apple]';
// this would obviously be created dynamically, hard coded for testing
$$var = $some_value1;
echo $myarray[foo][bar][red][apple];
but when I tried it, it didn't work :(
looks like eval() to the rescue...
-Original Message-
From: Darren Gamble [mailto:[EMAIL PROTECTED]]
Sent: Tuesday, December 04, 2001 10:37 AM
To: PHP List
Subject: [PHP] Multidimensional array construction
Here's a question for the list:
I have a two-dimensional array; essentially a list of arrays. Each element
(an array) can have any number of elements. As a small example:
(
( foo , bar , red , apple ),
( foo , bar , red , car),
( foo , green )
)
I would like to traverse this array and place all of the data into another
multidimensional array. The following statements illustrate how I'd like to
do this from the example:
$myarray[foo][bar][red][apple] = $some_value1;
$myarray[foo][bar][red][car] = $some_value2;
$myarray[foo][green] = $some_value3;
Is there any way to easily do this in PHP? I could cheat and use eval(),
but there is probably a better way. I have thought of using each() or
references, but nothing has come to mind so far.
Any ideas? Should I just use eval() ?
Darren Gamble
Planner, Regional Services
Shaw Cablesystems GP
630 - 3rd Avenue SW
Calgary, Alberta, Canada
T2P 4L4
(403) 781-4948
--
PHP General Mailing List (http://www.php.net/)
To unsubscribe, e-mail: [EMAIL PROTECTED]
For additional commands, e-mail: [EMAIL PROTECTED]
To contact the list administrators, e-mail: [EMAIL PROTECTED]
