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run code in 300+ PHP versions simultaneously
<?php class Node { private $foo; public function __sleep() { return array('foo'); } public function __set($name, $val) { $foo[$name] = $val; } } $node = new Node; $node->self = $node; echo serialize($node);
Output for git.master, git.master_jit, rfc.property-hooks
O:4:"Node":1:{s:9:"Nodefoo";N;}

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