Online PHP editor | refs for O68ll

<?php class c1 { public $a = 1; public $b = 2; } class c2 implements Serializable { public $a = 1; public $b = 2; public function serialize() { return 's:1:"a";i:1;s:1:"b";i:2;'; } public function unserialize($str) { $this->a = 3; } public function __wakeup() { echo $this->a; } } $o1 = new c1; $o2 = new c2; echo $o_str = serialize($o1) . "\n"; echo $c_str = serialize($o2) . "\n"; $o_str = str_replace($o_str, "c1", "c2"); //$o1 = unserialize($o_str); $o2 = unserialize($c_str);