3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php echo _(1); ?>
based on HKf3f
Output for 4.3.0 - 5.6.30, hhvm-3.11.1 - 3.17.3, 7.0.0 - 7.2.0
1
Output for hhvm-3.10.1
Fatal error: Call to undefined function _() in /in/mOSJ2 on line 2
Process exited with code 255.