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<?php trait MyTrait { abstract public function traitMethod($param): bool; } class ChildClass { use MyTrait; public function traitMethod(int $param): bool { // change trait method parameter type // implementation } }
Output for git.master, git.master_jit, rfc.property-hooks
Fatal error: Declaration of ChildClass::traitMethod(int $param): bool must be compatible with MyTrait::traitMethod($param): bool in /in/l1bpJ on line 11
Process exited with code 255.

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