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php 判断数组是一维,二维,还是多维,php判断数组多维

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Release: 2016-06-13 08:38:59
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php 判断数组是一维,二维,还是多维,php判断数组多维

<?php
/**
 * 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);
}
?>
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