3v4l.org

run code in 300+ PHP versions simultaneously
<?php /** @var $test null|string */ $test = 'pippo'; if (!empty($test)) { echo "DIO"; } else { echo "porco"; }
Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.20, 7.2.0 - 7.2.33, 7.3.16 - 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
DIO
preferences:
151.72 ms | 404 KiB | 174 Q