<?php

$array1 = [ 'color' => 'red', 'size' => 'XL', 'style' => 'gothic', 'brand' => 'levi', 'token' => 1 ];


$array2 = [ 'color' => 1, 'brand' => 1 ];

$array3 = array_diff_key($array1, $array2);

$array4 = ['token' => mt_rand(0, 10), 'color' => 'red', 'size' => 'xl'];

$array5 = [ 'token' => 1 ];
echo PHP_EOL;
if (empty($array3))
    echo "no results returned";
else
    var_export($array3);
echo PHP_EOL;

$array4 = array_intersect_key($array1, $array5);
var_export($array4);