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run code in 500+ PHP versions simultaneously
<?php class C implements Serializable { public function __serialize() { return []; } public function __unserialize(array $data) {} public function serialize() { return serialize( [] ); } public function unserialize( $serialized ) { $data = unserialize( $serialized ); } } var_dump(unserialize('C:1:"C":6:{a:0:{}}'));
Output for 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.34, 8.2.0 - 8.2.34, 8.3.0 - 8.3.35, 8.4.1 - 8.4.26, 8.5.0 - 8.5.11
object(C)#1 (0) { }

preferences:
27.1 ms | 1152 KiB | 7 Q