note 40713 added to function.shuffle
| From: | injunjoel at rn2 dot php dot net | Date: | Fri, 12 Mar 2004 00:27:09 +0000 |
| Subject: | note 40713 added to function.shuffle | ||
| Groups: | php.notes | ||
| Request: | Send a blank email to php-notes+get-66692@lists.php.net to get a copy of this message | ||
Be aware that when shuffling an associative array your associative keys will be lost! example below:
<?php
echo "before shuffle\n";
$numbers =
array('first'=>1,'second'=>2,'third'=>3,'fourth'=>4);
foreach($numbers as $key=>$value){
echo "$key => $value\n";
}
echo "\nafter shuffle\n";
srand((float)microtime() * 1000000);
shuffle($numbers);
foreach($numbers as $key=>$value){
echo "$key => $value\n";
}
?>
--output--
before shuffle
first => 1
second => 2
third => 3
fourth => 4
after shuffle
0 => 4
1 => 1
2 => 3
3 => 2
----
Manual Page -- http://www.php.net/manual/en/function.shuffle.php
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