3v4l.org

run code in 300+ PHP versions simultaneously
<?php $myvar = 0; if (empty($myvar)) { echo "It's empty."; } if(!isset($myvar)) { echo "It's not set."; }
Output for 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 - 8.1.34, 8.2.0 - 8.2.30, 8.3.0 - 8.3.30, 8.4.1 - 8.4.18, 8.5.0 - 8.5.3
It's empty.
preferences:
99.23 ms | 1466 KiB | 4 Q