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<?php $class = "ArrayObject"; // we break BC here var_dump(unserialize('O:'.strlen($class).':"'.$class.'":0:{}')); // we still allow segfault: class MySplFileObject extends SplFileObject{} $class = "MySplFileObject"; var_dump(unserialize('O:'.strlen($class).':"'.$class.'":0:{}'));
Output for git.master, git.master_jit, rfc.property-hooks
Fatal error: Uncaught UnexpectedValueException: Incomplete or ill-typed serialization data in /in/BDq6g:4 Stack trace: #0 [internal function]: ArrayObject->__unserialize(Array) #1 /in/BDq6g(4): unserialize('O:11:"ArrayObje...') #2 {main} thrown in /in/BDq6g on line 4
Process exited with code 255.

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