(PHP 3 >= 3.0.8, 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.
Note: This function
assigns new keys for the elements in array.
It will remove any existing keys you may have assigned, rather
than just reordering the keys.
Example 1. shuffle() example
<?php $numbers = range(1, 20); srand((float)microtime() * 1000000); shuffle($numbers); foreach ($numbers as $number) { echo "$number "; } ?>
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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.
See also arsort(), asort(),
ksort(), rsort(),
sort(), and usort().