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<?php trait Adder { public function calculate(int $x, int $y) { echo $x + $y; } } trait Subtractor { public function calculate(int $x, int $y) { echo $x - $y; } } class StupidCalc { use Adder { calculate as public add; } use Subtractor { calculate as public sub; } function maybeAdd(int $x, int $y) { $this->add($x, $y); } function maybeSub(int $x, int $y) { $this->sub($x, $y); } } $calc = new StupidCalc(); $calc->maybeAdd(3, 2); $calc->maybeSub(3, 2);
Output for git.master, git.master_jit, rfc.property-hooks
Fatal error: An alias was defined for method calculate(), which exists in both Adder and Subtractor. Use Adder::calculate or Subtractor::calculate to resolve the ambiguity in /in/JsA0o on line 15
Process exited with code 255.

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