shuffle
(PHP 4, PHP 5)
shuffle — Shuffle an array
Description
bool shuffle
( array &$array
)
This function shuffles (randomizes the order of the elements in) an array.
Parameters
- array
-
The array.
Return Values
Returns TRUE on success or FALSE on failure.
Examples
Example #1 shuffle() example
<?php
$numbers = range(1, 20);
srand((float)microtime() * 1000000);
shuffle($numbers);
foreach ($numbers as $number) {
echo "$number ";
}
?>
Notes
Note: This function assigns new keys to the elements in array . It will remove any existing keys that may have been assigned, rather than just reordering the keys.
Note: As of PHP 4.2.0, there is no need to seed the random number generator with srand() or mt_srand() as this is now done automatically.