array filtering between two different json object

array_filter.php

<?php


$array1 = json_decode(file_get_contents('country_list.json'),1);
$array2 = json_decode(file_get_contents('country_list_en.json'),1);

$arrayDiff = array_filter($array2, function ($element) use ($array1) {
    return !in_array($element, $array1);
});

print '<pre>';
print_r($arrayDiff);
print '</pre>';