3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php print_r( $_SESSION );
Output for 5.0.4 - 5.6.28, 7.0.0 - 7.1.0
Notice: Undefined variable: _SESSION in /in/Giiqs on line 3
Output for hhvm-3.10.0 - 3.12.0
Array ( )
Output for 4.3.0 - 5.0.3
Notice: Undefined variable: _SESSION in /in/Giiqs on line 3