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<?php class A { final protected function __clone() { throw new Exception("No cloning!"); } } class B extends A { // this should probably not be legal function copy() { return clone $this; } } var_dump((new B)->copy());
Output for git.master, git.master_jit, rfc.property-hooks
Fatal error: Uncaught Exception: No cloning! in /in/U1LMQ:6 Stack trace: #0 /in/U1LMQ(13): A->__clone() #1 /in/U1LMQ(16): B->copy() #2 {main} thrown in /in/U1LMQ on line 6
Process exited with code 255.

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