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# shuffle

(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.

> 注: 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.

範例 1. shuffle() example

`<?php $numbers = range(1, 20); srand((float)microtime() * 1000000); shuffle($numbers); foreach ($numbers as $number) { echo "$number "; } ?>`

> 注: ��PHP 4.2.0 �l�A�z�ݭn�A�ϥ� srand() �� mt_srand() �üƲ�;�Ѻؤl�A�]�o�w�۰ʪ�ѤF�C

See also arsort(), asort(), ksort(), rsort(), sort(), and usort().

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