3v4l.org

run code in 300+ PHP versions simultaneously
<?php $var = 1; $var or die("It won't stop here"); $var = 0; $var or die("Stop here"); echo "You won't see this!";
Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.25, 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 - 8.3.27, 8.4.1 - 8.4.14
Stop here
preferences:
153.53 ms | 408 KiB | 5 Q