Intersect arrays recursively in php.

Intersect.php

<?php

class Interect
{

    /**
     * Return intersecting array of varargs arrays.
     * Compares keys and values. Checks recursively.
     * Returns empty array if no intersection.
     *
     * @param array ...$arrays
     * @return array
     */
    public static function intersectRecursiveAll(array ...$arrays)
    {
        $intersect = array_shift($arrays);

        for ($i = 0, $len = count($arrays); $i < $len; ++$i) {
            $intersect = self::intersectRecursive($intersect, $arrays[$i]);
        }

        return $intersect;
    }

    /**
     * Return intersecting array of two given arrays.
     * Compares keys and values. Checks recursively.
     * Returns empty array if no intersection.
     *
     * @param array $array1
     * @param array $array2
     * @return array
     */
    public static function intersectRecursive($array1, $array2)
    {
        $properties = [];

        foreach ($array1 as $key => $value) {
            if (isset($array2[$key])) {
                // key the same - check value
                $value1 = $value;
                $value2 = $array2[$key];

                if (is_array($value1)) {
                    $intersectValue = self::intersectRecursive($array1[$key], $array2[$key]);

                    if ($intersectValue) {
                        $properties[$key] = $intersectValue;
                    }
                } elseif ($value1 === $value2) {
                    $properties[$key] = $value1;
                }
            }
        }
        return $properties;
    }
}

thanks, perfect