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PHP 反向排序和随机排序代码

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Release： 2016-06-13 12:15:12
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array_reverse()函数与shuffle()函数介绍

array_reverse()
array array_reverse(array)array_reverse()函数传入参数为一数组，返回一个与传入参数值相同但顺序相反的数组。

复制代码 代码如下:


$a = array(1,2,3,4,5);
$a = array_reverse($a);
for ($i=0; $iecho $a[$i]." ";
?>


结果为：

5 4 3 2 1

shuffle()
bool shuffle(array)shuffle函数对传入的数组进行随机排序，成功返回TRUE，否则返回FALSE。

复制代码 代码如下:


$a = array(1,2,3,4,5);
shuffle($a);
for ($i=0; $iecho $a[$i]." ";
shuffle($a);
echo "
";
for ($i=0; $iecho $a[$i]." ";
?>


两次调用返回的结果：

4 1 2 5 3
1 5 2 4 3
Related labels：
array php shuffle one and for introduce code function parameter reverse and sort array random
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