tfw if (!$asdasd) { $asdasd = array( "foo" => mt_rand(33333, 88888), "bar" => "%d%d%d%d%d%d%d" ); } while (($pos = strpos($asdasd["bar"], "%d")) !== false) $asdasd["bar"] = substr_replace($asdasd["bar"], mt_rand(0, 9), $pos, 2);