php 数组随机排序_php 数组元素随机排序代码

发布时间：2022-10-18 10:59:08 所属栏目：PHP教程来源：

导读：　　php教程数组元素随机排序代码

　　因为工作需要我要对我定义好的数组进行随机排序，每一次循环都要是不同的，下面我们利用了php shuffle函数随机对数组元素进行排序。方法非常简单。

　　shuffle() 函数

　　php教程数组元素随机排序代码

　　因为工作需要我要对我定义好的数组进行随机排序，每一次循环都要是不同的，下面我们利用了php shuffle函数随机对数组元素进行排序。方法非常简单。

　　shuffle() 函数把数组中的元素按随机顺序重新排列。

　　若成功，则返回 true，否则返回 false。

　　注释：本函数为数组中的单元赋予新的键名。这将删除原有的键名而不仅是重新排序。

　　*/

　　$array = array(1,2,3,4);

　　for( $i=1;$i

　　{

　　shuffle( $array );

　　print_r($array);

　　echo '

　　';

　　}

　　/*

　　array ( [0] => 3 [1] => 2 [2] => 4 [3] => 1 )

　　array ( [0] => 3 [1] => 4 [2] => 1 [3] => 2 )

　　array ( [0] => 2 [1] => 1 [2] => 3 [3] => 4 )

　　array ( [0] => 2 [1] => 4 [2] => 1 [3] => 3 )

　　array ( [0] => 3 [1] => 4 [2] => 2 [3] => 1 )

　　array ( [0] => 3 [1] => 2 [2] => 4 [3] => 1 )

　　array ( [0] => 3 [1] => 4 [2] => 1 [3] => 2 )

　　array ( [0] => 4 [1] => 2 [2] => 1 [3] => 3 )

　　array ( [0] => 2 [1] => 4 [2] => 1 [3] => 3 )

　　array ( [0] => 4 [1] => 3 [2] => 1 [3] => 2 )

　　array ( [0] => 3 [1] => 2 [2] => 1 [3] => 4 )

　　array ( [0] => 4 [1] => 3 [2] => 1 [3] => 2 )

　　array ( [0] => 4 [1] => 1 [2] => 2 [3] => 3 )

　　array ( [0] => 2 [1] => 1 [2] => 4 [3] => 3 )

　　array ( [0] => 3 [1] => 1 [2] => 4 [3] => 2 )

　　array ( [0] => 2 [1] => 1 [2] => 3 [3] => 4 )

　　array ( [0] => 4 [1] => 1 [2] => 3 [3] => 2 )

　　array ( [0] => 1 [1] => 4 [2] => 2 [3] => 3 )

　　array ( [0] => 3 [1] => 2 [2] => 1 [3] => 4 )

　　array ( [0] => 1 [1] => 2 [2] => 4 [3] => 3 )

　　array ( [0] => 1 [1] => 3 [2] => 4 [3] => 2 )

　　array ( [0] => 2 [1] => 4 [2] => 3 [3] => 1 )

　　array ( [0] => 3 [1] => 2 [2] => 1 [3] => 4 )

　　array ( [0] => 1 [1] => 3 [2] => 4 [3] => 2 )

　　array ( [0] => 2 [1] => 1 [2] => 4 [3] => 3 )

　　array ( [0] => 4 [1] => 1 [2] => 3 [3] => 2 )

　　array ( [0] => 3 [1] => 2 [2] => 1 [3] => 4 )

　　array ( [0] => 1 [1] => 2 [2] => 3 [3] => 4 )

　　array ( [0] => 2 [1] => 1 [2] => 4 [3] => 3 )

　　总结：

　　php有大量的函数，如果你知道这个函数会对你开发提高大量的帮助PHP数组排序，如果你不知道要自己写可能花很多时间。

　　*/

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