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<?php interface IRequest { public function test(); } class CreditMode implements IRequest{ public function test(){ echo "test in CreditMode\n"; } } class Father { public function from(IRequest $source) {} } class Son extends Father { public function from(IRequest $request) { $request->test(); } } $son = new Son(); $son->from(new CreditMode());
Output for git.master, git.master_jit, rfc.property-hooks
test in CreditMode

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