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run code in 300+ PHP versions simultaneously
<?php class Type { } class Bar { private Type $type; public function __sleep() { return ['type']; } } class Foo { private $bar; public function __construct() { $this->bar = new Bar(); } } $foo = new Foo(); echo serialize($foo);
Output for git.master, git.master_jit, rfc.property-hooks
O:3:"Foo":1:{s:8:"Foobar";O:3:"Bar":0:{}}

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