3v4l.org

run code in 300+ PHP versions simultaneously
<?php ob_start( "compact" ); ?>
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6

Process exited with code 255.
Output for 7.0.3 - 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
Output for 7.0.0 - 7.0.2

Process exited with code 139.
Output for 5.5.0 - 5.5.38, 5.6.0 - 5.6.28
Array
preferences:
215.8 ms | 402 KiB | 240 Q