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<?php class A { } class B { public function m(A $a = NULL, &$n) { echo "B.m";} }; class C extends B { public function m( $a ) { echo "C.m";} }; $b = new B(); $b->m(new A(), $b); $c = new C(); $c->m(new A(), $b); ?>
Output for git.master, git.master_jit, rfc.property-hooks
Fatal error: Declaration of C::m($a) must be compatible with B::m(?A $a, &$n) in /in/Sgf7O on line 4
Process exited with code 255.

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