Php judges whether an array is a one-dimensional, two-dimensional, or multi-dimensional method _ PHP Tutorial-php Tutorial

Php judges whether an array is a one-dimensional, two-dimensional, or multi-dimensional method. Sometimes our array is dynamically generated, and we do not know how many dimensions the array is. next I will introduce you to php to determine whether the array is a one-dimensional, two-dimensional, or multi-dimensional method, sometimes our array is dynamically generated, and we do not know how many dimensions the array is, next I will introduce you to php to determine whether an array is a one-dimensional, two-dimensional, or multi-dimensional method. if you need to know about it, please refer.

Column 1

The code is as follows:
/** * Returns the array dimension. * @ 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 ); } ?>

Example 2

You can determine whether it is a one-dimensional, two-dimensional, or several-dimensional array:

The code is as follows:
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; } } It has been verified and can be used. // Test $ Arr = array ('yiyi' => 1212, 'hahaha' => array ('heiheihei' => array ("a"), "B ")); Echo getmaxdim ($ arr ); // Result 4

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