计算多维数组到底是几维的

function arrayLevel($arr){
    $al = array(0);
    function aL($arr,&$al,$level = 0){
        if(is_array($arr)){
            $level++;
            $al[] = $level;
            foreach($arr as $v){
                aL($v,$al,$level);
            }
        }
    }
    aL($arr,$al);
    return max($al);
}

 

转载于:https://www.cnblogs.com/pansidong/p/10420760.html