Online PHP editor | refs for 0GRnk

<?php class Connection { protected $link; private $server, $username, $password, $db; public function __construct($server, $username, $password, $db) { echo 'constructing'; $this->server = $server; $this->username = $username; $this->password = $password; $this->db = $db; $this->connect(); } private function connect() { echo 'conected'; } public function __sleep() { return array('server', 'username', 'password', 'db'); } public function __wakeup() { $this->connect(); } } $a = new Connection('s', 'u', 'p', 'd'); echo '-----------------------'; $sa = serialize($a); echo 'n------------------------'; $usa = unserialize($sa);