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<?php declare(strict_types=1); /** * @param array{a: float, b: float} $params */ function f(array $params): void { mapAtan($params); } /** * @param array<array-key, float> $arr * @return array<array-key, float> */ function mapAtan(array $arr): array { $ret = []; foreach ($arr as $k => $v) { $ret[$k] = atan($v); } return $ret; } f(['a' => 0.5, 'b' => 10, 'c' => new Exception()]);
Output for git.master, git.master_jit, rfc.property-hooks
Fatal error: Uncaught TypeError: atan(): Argument #1 ($num) must be of type float, Exception given in /in/b7XcPK:16 Stack trace: #0 /in/b7XcPK(16): atan(Object(Exception)) #1 /in/b7XcPK(6): mapAtan(Array) #2 /in/b7XcPK(21): f(Array) #3 {main} thrown in /in/b7XcPK on line 16
Process exited with code 255.

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