Array diff withe one level recursiveness

gistfile1.aw

<?php

$array1 = array(
  array('code' => 1, 'quantity' => 2)
);

$array2 = array(
  array('code' => 1, 'quantity' => 2)
);

$array3 = array(
  array('code' => 1, 'quantity' => 3)
);

(bool) array_udiff($array1, $array2, 'array_diff'); // false
(bool) array_udiff($array1, $array3, 'array_diff'); // true