note 52860 added to control-structures.foreach
| From: | badbrush at pixtur dot de | Date: | Sun, 15 May 2005 17:22:04 +0000 |
| Subject: | note 52860 added to control-structures.foreach | ||
| Groups: | php.notes | ||
| Request: | Send a blank email to php-notes+get-89468@lists.php.net to get a copy of this message | ||
another WARNING about report #26396 having status "wont fix":
Beware of using foreach in recursive functions like...
function sort_folders(&$items, $parent,$level) {
foreach($items as $item) {
if($item->parent == $parent) {
print $item;
// call recursively...
sort_folders(&$items, $item, $level+1);
}
}
}
I struggled a few hours with this code, because I thought the passing the array by reference would
be the problem. Infact you can only have ONE foreach for an array at any given time. A foreach
inside another foreach does not work.
The manual should definately give some hints about this behaviour.
pixtur
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Manual Page -- http://www.php.net/manual/en/control-structures.foreach.php
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