gistfile1.php[345]

<?php                                                                                                                                                                                                             

function compare($a, $b){
  return $a < $b ? -1 : 1;

}

$array_one = array( 0 => 1234, 1 => 5678, 2 => 7777, 3 => 3333);
$array_two = array( 0 => 9999, 1 => 5678, 2 => 8888, 3 => 1234);

var_dump($array_one);
var_dump($array_two);

$array_merged = array_merge($array_one, $array_two);

var_dump($array_merged);

usort($array_merged, 'compare');

var_dump($array_merged);


?>