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<?php function sum(float ...$numbers) : float { $intsum = function ($sum, array $numbers) use(&$intsum) { if (count($numbers) == 0) { return $sum; } $number = array_shift($numbers); $sum += $number; return $intsum($sum, $numbers); }; return $intsum(0, $numbers); } echo call_user_func_array('sum', range(1, 100)); echo PHP_EOL; echo sum(1.5, 2, 3, 4); echo PHP_EOL; try { sum('a', 'b', 'c'); } catch (Error $e) { echo $e->getMessage(); }
Output for git.master, git.master_jit, rfc.property-hooks
5050 10.5 sum(): Argument #1 must be of type float, string given, called in /in/DRcdY on line 24

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