3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php echo php_version;
Output for 4.3.0 - 5.6.30, hhvm-3.10.1 - 3.21.0, 7.0.0 - 7.1.8
Notice: Use of undefined constant php_version - assumed 'php_version' in /in/Wv2NB on line 3 php_version