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<?php class C { public function __serialize() { return []; } public function __unserialize(array $data) {} } var_dump(unserialize('C:1:"C":6:{a:0:{}}'));
Output for git.master, git.master_jit, rfc.property-hooks
Warning: Class C has no unserializer in /in/WHBN2 on line 8 object(C)#1 (0) { }

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