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<?php class A { function foo($a) { var_dump($a); } } class B extends A { function foo($a, $b) { var_dump($a, $b); } } $b = new B; $b->foo(1, 2);
Output for git.master, git.master_jit, rfc.property-hooks
Fatal error: Declaration of B::foo($a, $b) must be compatible with A::foo($a) in /in/HYBf4 on line 10
Process exited with code 255.

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