3v4l.org

run code in 300+ PHP versions simultaneously
<?php function doSomething(int|string $value): ?float { if ($value === null) return null; return round($value, 3); }
Output for 8.0.1 - 8.0.30, 8.1.0 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.25, 8.4.1 - 8.4.12
Output for 7.4.0 - 7.4.33
Parse error: syntax error, unexpected '|', expecting variable (T_VARIABLE) in /in/v4OJf on line 3
Process exited with code 255.

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