如何判断php数组的维度_php技巧

WBOY
Release: 2016-05-17 09:02:00
Original
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如下所示:

复制代码 代码如下:

/**
 * 返回数组的维度
 * @param  [type] $arr [description]
 * @return [type]      [description]
 */
function arrayLevel($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);
}

$arr = array(
    '0'=>'0',
);

echo arrayLevel($arr);
?>
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