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<?php class A { public function do($a = NULL) { } } class B extends A { public function do($a) { } }
Output for git.master, git.master_jit, rfc.property-hooks
Fatal error: Declaration of B::do($a) must be compatible with A::do($a = null) in /in/vEPuC on line 10
Process exited with code 255.

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