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<?php declare(strict_types=1); $intId = function (int $a) { return $a; }; var_dump(array_map($intId, ['1'])); var_dump($intId('1'));
Output for git.master, git.master_jit, rfc.property-hooks
array(1) { [0]=> int(1) } Fatal error: Uncaught TypeError: {closure}(): Argument #1 ($a) must be of type int, string given, called in /in/sYLE3 on line 8 and defined in /in/sYLE3:5 Stack trace: #0 /in/sYLE3(8): {closure}('1') #1 {main} thrown in /in/sYLE3 on line 5
Process exited with code 255.

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