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<?php declare(strict_types=1); function doSomething(int|string $value): ?float { if ($value === null) return null; return round($value, 3); } doSomething(1); doSomething('pink');
Output for git.master_jit, git.master, rfc.property-hooks
Fatal error: Uncaught TypeError: round(): Argument #1 ($num) must be of type int|float, string given in /in/8Xv8g:8 Stack trace: #0 /in/8Xv8g(8): round('pink', 3) #1 /in/8Xv8g(12): doSomething('pink') #2 {main} thrown in /in/8Xv8g on line 8
Process exited with code 255.

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