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PHP method to determine whether an array is one-dimensional, two-dimensional, or multi-dimensional_PHP tutorial

WBOYOriginal: 2016-07-13 17:00:131330browse

Sometimes our array is dynamically generated, and we don’t know how many dimensions the array is. Now I will introduce to you the PHP method to determine whether the array is one-dimensional, two-dimensional, or multi-dimensional. Friends who need to know more can enter refer to.

Column 1

The code is as follows

代码如下

复制代码

/**

* 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);

}

Copy code

代码如下

复制代码

验证过可以使用.

//测试
$arr=array('yiyi'=>1212,'haha'=>array('heihei'=>array(array("a")),"b"));
echo getmaxdim($arr);
//结果
4

/** * Return the dimensions of the array * @param [type] $arr [description]

$al[] = $level;

foreach($arr as $v){

aL($v,$al,$level); } } } aL($arr,$al); return max($al); } ?> Example 2 You can determine whether it is one-dimensional, two-dimensional, or an array of several dimensions:

The code is as follows

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function getmaxdim($vDim) { If(!is_array($vDim)) return 0; Else { $max1 = 0; foreach($vDim as $item1) $t1 = $this->getmaxdim($item1); If( $t1 > $max1) $max1 = $t1; } Return $max1 + 1; } } Verified and ready to use. //Test $arr=array('yiyi'=>1212,'haha'=>array('heihei'=>array(array("a")),"b")); echo getmaxdim($arr); //Result 4 http://www.bkjia.com/PHPjc/631274.htmlwww.bkjia.comtruehttp: //www.bkjia.com/PHPjc/631274.htmlTechArticleSometimes our array is dynamically generated, and we don’t know how many dimensions the array has. Let me tell you A classmate introduced the PHP method to determine whether an array is one-dimensional, two-dimensional, or multi-dimensional. If necessary...

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