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<?php class C { } class A { public function foo(/* C */ $c) { echo 'c'; } } class B extends A { public function foo(C $c) { echo 'd'; } } $c = new C(); $b = new B(); echo $b->foo($c);
Output for git.master, git.master_jit, rfc.property-hooks
Fatal error: Declaration of B::foo(C $c) must be compatible with A::foo($c) in /in/s6f92 on line 14
Process exited with code 255.

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