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<?php $c1 = new class() implements Serializable { public function serialize() { return 'foo'; } public function unserialize($data) { return new self(); } }; var_dump(serialize($c1));
Output for git.master, git.master_jit, rfc.property-hooks
Deprecated: Serializable@anonymous implements the Serializable interface, which is deprecated. Implement __serialize() and __unserialize() instead (or in addition, if support for old PHP versions is necessary) in /in/jT8sU on line 3 Fatal error: Uncaught Exception: Serialization of 'Serializable@anonymous' is not allowed in /in/jT8sU:12 Stack trace: #0 /in/jT8sU(12): serialize(Object(Serializable@anonymous)) #1 {main} thrown in /in/jT8sU on line 12
Process exited with code 255.

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