note 36837 modified in function.array-values by vrana
| From: | vrana@php.net | Date: | Tue, 17 Aug 2004 14:52:09 +0000 |
| Subject: | note 36837 modified in function.array-values by vrana | ||
| References: | 1 | Groups: | php.notes |
| Request: | Send a blank email to php-notes+get-79926@lists.php.net to get a copy of this message | ||
Just a warning that re-indexing an array by array_values() may cause you to reach the memory limit
unexpectly.
For example, if your PHP momory_limits is 8MB,
and says there's a BIG array $bigArray which allocate 5MB of memory.
Doing this will cause PHP exceeds the momory limits:
<?php
$bigArray = array_values( $bigArray );
?>
It's because array_values() does not re-index $bigArray directly,
it just re-index it into another array, and assign to itself later.
--was--
Just a warning that re-indexing an array by array_values() may cause you to reach the memory limit
unexpectly.
For example, if your PHP momory_limits is 8MB,
and says there's a BIG array $bigArray which allocate 5MB of memory.
Doing this will cause PHP exceeds the momory limits:
$bigArray = array_values( $bigArray );
It's because array_values() does not re-index $bigArray directly,
it just re-index it into another array, and assign to itself later.
http://php.net/manual/en/function.array-values.php