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<?php $a = function ($it) : int { return $it; }; $a("a");
Output for git.master, git.master_jit, rfc.property-hooks
Fatal error: Uncaught TypeError: {closure}(): Return value must be of type int, string returned in /in/iXOHq:4 Stack trace: #0 /in/iXOHq(7): {closure}('a') #1 {main} thrown in /in/iXOHq on line 4
Process exited with code 255.

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