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<?php trait X{ function tryA(A $a){ $this->test($a); } abstract function test(A $a); } trait Y{ function tryB(B $b){ $this->test($b); } abstract function test(B $b); } interface LOLI{ function test(A $b); } class LOL implements LOLI{ use X, Y; function test(A $a){} } class A{} class B{} $x = new LOL; $x->tryA(new A); $x->tryB(new B);
Output for git.master, git.master_jit, rfc.property-hooks
Fatal error: Declaration of LOL::test(A $a) must be compatible with Y::test(B $b) in /in/9hpBZ on line 27
Process exited with code 255.

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