Posted by Michael on 11/28/07 06:23

Michael wrote:
> Kailash Nadh wrote:
>> On Nov 27, 8:40 pm, jj <jjwalke...@gmail.com> wrote:
>>> Trying to understand the manual regarding variables to solve the
>>> following.
>>>
>>> I'm working with Drupal CMS and have a loop to retrieve values that
>>> are normally fetched by using this variable:
>>> $node->field_screen_1_caption[0]['view']. The loop should run n times,
>>>
>>> incrementing that number 1 so next variable is $node-
>>>
>>>> field_screen_2_caption[0]['view'].
>>> Here's what I'm trying in my loop to change that number in the
>>> variable using $i:
>>>
>>> for ($i = 1; $i <= $number_of_screens; $i++) {
>>> $cap = 'node->field_screen_'.$i.'_caption[0][\'view\']';
>>> print $$cap;
>>>
>>> }
>>>
>>> Doesn't work obviously. Any suggestions for a PHP amateur.
>>>
>>> Thanks,
>>> jj
>>
>> eval() - http://php.net/eval
>>
>> for ($i = 1; $i <= $number_of_screens; $i++) {
>> eval("\$cap = \$node->field_screen_{$i}_caption[0][\"view\"];");
>> print $cap;
>> }
>>
>> --
>> Kailash Nadh | http://kailashnadh.name
>
> Ewww, eval really?
>
> Variable Variables -
> http://au.php.net/manual/en/language.variables.variable.php
> - is probably closer to what you want.
>
> Example:
>
> for ($i = 1; $i <= $number_of_screens; $i++) {
> $cap = '$node->field_screen_' . $i . '_caption[0][\'view\']';
> print $$cap;
> }
>
> Should work! However I *strongly* suggest using an array.
>
> - Michael

Agh, whoops what i meant was...

for ($i = 1; $i <= $number_of_screens; $i++) {
$cap = '$node->field_screen_' . $i . '_caption';
print $$cap[0]['view'];
}

- Michael

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