- print_r: documentation ( source)
- usort: documentation ( source)
<?php
function cmp($a, $b)
{
if ($a == $b) {
return 0;
}
return ($a < $b) ? -1 : 1;
}
$result = array(3, 2, 5, 6, 1);
usort($result, "cmp");
echo '<pre>'; print_r($result); echo '</pre>';