How to determine the dimensions of an array in php

php method to determine how many dimensions an array is: first create a PHP sample file; then define a foreachArray method; then use the "is_array" function to detect whether the variable is an array; finally determine whether the array is an array through loop traversal Just a few dimensions.

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PHP Determines the Dimension of an Array

/**
 * 判断数组为几维数组 可优化
 * @param array $array
 * @param int $count
 * @return int
 */
function foreachArray($array = [], $count = 1){
    if (!is_array($array)){
        return $count;
    }
    foreach ($array as $value){
        $count++;
        if (!is_array($value)){
            return $count;
        }
        return foreachArray($value, $count);
    }
}

Related introduction:

is_array() function is used to detect whether a variable is an array.

Syntax

bool is_array ( mixed $var )

Parameter description:

$var: Variable to be detected.

Return value

If the detected variable is an array, TRUE is returned, otherwise FALSE is returned.

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