3v4l.org

run code in 300+ PHP versions simultaneously
<?php declare(strict_types=1); function sum($a, $b): float { return $a + $b; } var_dump(sum(1, 2)); var_dump(sum(1, 2.5)); ?>
Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
float(3) float(3.5)
Output for 5.5.0 - 5.5.38, 5.6.0 - 5.6.28
Warning: Unsupported declare 'strict_types' in /in/oIMAW on line 2 Parse error: syntax error, unexpected ':', expecting '{' in /in/oIMAW on line 4
Process exited with code 255.
preferences:
219.61 ms | 402 KiB | 268 Q