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<?php class Foo { protected $foo = 123; } $foo = new Foo(); $serializedFoo = serialize($foo); $unserializedFoo = unserialize($serializedFoo, ['allowed_classes' => Foo::class]); var_dump($serializedFoo, $unserializedFoo);
Output for git.master, git.master_jit, rfc.property-hooks
Fatal error: Uncaught TypeError: unserialize(): Option "allowed_classes" must be of type array|bool, string given in /in/Fc9Td:11 Stack trace: #0 /in/Fc9Td(11): unserialize('O:3:"Foo":1:{s:...', Array) #1 {main} thrown in /in/Fc9Td on line 11
Process exited with code 255.

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