shuffle
Description
void shuffle ( array array)This function shuffles (randomizes the order of the elements in) an array. You must use srand() to seed this function.
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().