3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php echo 'FOX_LOG_DEFAULT_LEVEL' + 1;
Output for 7.1.0 - 7.2.11
Warning: A non-numeric value encountered in /in/vfKtE on line 2 1
Output for 5.4.0 - 7.0.20
1