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<?php Interface wut { public function foo( $yolo ); } class dude implements wut { public function foo ( $yolo ): string { echo $yolo; } } $x = new dude(); $x->foo(2);
Output for git.master, git.master_jit, rfc.property-hooks
2 Fatal error: Uncaught TypeError: dude::foo(): Return value must be of type string, none returned in /in/YLNLf:10 Stack trace: #0 /in/YLNLf(14): dude->foo(2) #1 {main} thrown in /in/YLNLf on line 10
Process exited with code 255.

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