note 43635 added to function.array-keys
| From: | fredatforsalebyownerdotcom at rn2 dot php dot net | Date: | Mon, 28 Jun 2004 19:51:23 +0000 |
| Subject: | note 43635 added to function.array-keys | ||
| Groups: | php.notes | ||
| Request: | Send a blank email to php-notes+get-72070@lists.php.net to get a copy of this message | ||
I can't take it...code like this:
//Assign $array up here
for($j = 0; $j < count($array); $j++) {
//Do stuff
}
Is horribly broken. Don't do that...bad monkey. count($array) is generally loop invariant.
Do
$len = count($array);
for($j = 0; $j < $len; $j++) {
//Do stuff
}
If count($array) is not loop inviant then change it by the same amount that $array is changed
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Manual Page -- http://www.php.net/manual/en/function.array-keys.php
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