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<?php function sum(float ...$numbers) : float { $sum = 0; foreach ($numbers as $number) { $sum += $number; } return $sum; } echo sum(1, 2, 3, 4); echo PHP_EOL; echo sum(1.5, 2, 3, 4); echo PHP_EOL; try { sum('a', 'b', 'c'); } catch (Error $e) { echo $e; }
Output for git.master, git.master_jit, rfc.property-hooks
10 10.5 TypeError: sum(): Argument #1 must be of type float, string given, called in /in/tUnQ4 on line 19 and defined in /in/tUnQ4:3 Stack trace: #0 /in/tUnQ4(19): sum('a', 'b', 'c') #1 {main}

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