3v4l.org

run code in 300+ PHP versions simultaneously
<?php foreach (['dev', 'staging', 'production'] as $env) { $on_fr = (! in_array($env, ['dev', 'staging'])); if (! in_array($env, ['dev', 'staging']) || ! ($on_fr && $env === 'production')) { echo 'This environment is invalid ' . $env . PHP_EOL; } else { echo 'This environment is valid ' . $env . PHP_EOL; } }
Output for 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 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.7
This environment is invalid dev This environment is invalid staging This environment is invalid production
preferences:
215.43 ms | 404 KiB | 289 Q