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<?php #[Attribute(Attribute::TARGET_PROPERTY)] class NotSerializable {} class Foo { #[NotSerializable] public $bar = 1; public $baz = 2; public function __serialize(): array { $data = []; foreach ((new ReflectionObject($this))->getProperties() as $property) { if ($property->getAttributes(NotSerializable::class)) { continue; } $data[$property->getName()] = $property->getValue($this); } var_dump($data); return $data; } } var_dump(unserialize(serialize(new Foo())));
Output for git.master_jit, git.master, rfc.property-hooks
array(1) { ["baz"]=> int(2) } object(Foo)#1 (2) { ["bar"]=> int(1) ["baz"]=> int(2) }

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