PHP 反向排序和随机排序代码
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; $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; $i
shuffle($a);
echo "
";
for ($i=0; $i
?>
两次调用返回的结果:
4 1 2 5 3
1 5 2 4 3

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