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<?php $foo = new class {private $bar = '2';}; $bar = function ($foo) {return $foo . 'ly';}; var_dump(serialize($bar));
Output for git.master, git.master_jit, rfc.property-hooks
Fatal error: Uncaught Exception: Serialization of 'Closure' is not allowed in /in/jvn3b:5 Stack trace: #0 /in/jvn3b(5): serialize(Object(Closure)) #1 {main} thrown in /in/jvn3b on line 5
Process exited with code 255.

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