- var_dump: documentation ( source)
- array_values: documentation ( source)
- array_diff: documentation ( source)
<?php
// Arrays to hold the numbers for this demo
$arr1 = array(5,6,7,8);
$arr2 = array(2,5,6);
$arr3 = array_values(array_diff($arr1, $arr2));
// Correct result but in wrong positions in the array
var_dump($arr3); // array(2) { [2]=> int(7) [3]=> int(8) }
?>