Помогите оптимизировать код

[wolfcruel]

1)

private function ClearInactive() {global $database;if(TRACK_USR) {$timeout = time()-USER_TIMEOUT*60;$q = "DELETE FROM ".TB_PREFIX."active WHERE timestamp < $timeout";$database->query($q);}

и

2)

function register($username, $password, $email, $tribe, $act) {$time = time();$timep = (time() + PROTECTION);$q = "INSERT INTO " . TB_PREFIX . "users (username,password,access,email,timestamp,tribe,act,protect,lastupdate,regtime) VALUES ('$username', '$password', " . USER . ", '$email', $time, $tribe, '$act', $timep, $time, $time)";if(mysql_query($q, $this->connection)) {return mysql_insert_id($this->connection);} else {return false;}}

function activate($username, $password, $email, $tribe, $locate, $act, $act2) {$time = time();$q = "INSERT INTO " . TB_PREFIX . "activate (username,password,access,email,tribe,timestamp,location,act,act2) VALUES ('$username', '$password', " . USER . ", '$email', $tribe, $time, $locate, '$act', '$act2')";if(mysql_query($q, $this->connection)) {return mysql_insert_id($this->connection);} else {return false;}}