note 108988 deleted from function.array-reverse by danbrown
| From: | danbrown@php.net | Date: | Wed, 13 Jun 2012 15:30:16 +0000 |
| Subject: | note 108988 deleted from function.array-reverse by danbrown | ||
| References: | 1 | Groups: | php.notes |
| Request: | Send a blank email to php-notes+get-188581@lists.php.net to get a copy of this message | ||
Note Submitter: Stano110 at azet dot sk
----
This way can be array reversed in situ:
<?php
function arrayReverse(&$arr){
if (!is_array($arr) || empty($arr)) {
return;
}
$rev = array();
while ( false !== ( $val = end($arr) ) ){
$rev[ key($arr) ] = $val;
unset( $arr[ key($arr) ] );
}
$arr = $rev;
}
// usage example
$test = array(5, 'c'=>100, 10, 15, 20);
arrayReverse($test);
var_export($test); // result: array ( 3 => 20, 2 => 15, 1 => 10, 'c' => 100, 0
=> 5, )
?>