array_reverse 与 krsort的区别

array_reverse() 将数组倒序排序，键值改变
krsort() 将数组倒序排序，键值不变

$array = array('0'=>a,'1'=>b,'2'=>c);$a = array_reverse($array);krsort($array);print_r($array);echo "__________";print_r($a);得出结果Array ( [3] => c [2] => b [0] => a ) ________Array ( [0] => c [1] => b [2] => a )