3v4l.org

run code in 300+ PHP versions simultaneously
<?php $num1 = 5; $num2 = 10; $action = '+'; if ($action === '+') $res = $num1 + $num2; else $res='this calculator doesn\'t support this operation'; echo $res;
Output for 5.5.0 - 5.5.38, 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 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 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.25, 8.4.1 - 8.4.12
15
preferences:
154.8 ms | 408 KiB | 5 Q