3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php echo reset(explode('.',$_SERVER['HTTP_HOST']));
Output for 7.0.0 - 7.1.0
Notice: Undefined index: HTTP_HOST in /in/lbi3M on line 2 Notice: Only variables should be passed by reference in /in/lbi3M on line 2
Output for hhvm-3.12.0 - 3.13.2
Notice: Undefined index: HTTP_HOST in /in/lbi3M on line 2 Warning: explode() expects parameter 2 to be string, null given in /in/lbi3M on line 2 Warning: Invalid operand type was used: expecting an array in /in/lbi3M on line 2
Output for hhvm-3.10.0
Notice: Undefined index: HTTP_HOST in /in/lbi3M on line 2
Output for 5.3.0 - 5.6.28
Notice: Undefined index: HTTP_HOST in /in/lbi3M on line 2 Strict Standards: Only variables should be passed by reference in /in/lbi3M on line 2
Output for 5.1.0 - 5.2.17
Notice: Undefined index: HTTP_HOST in /in/lbi3M on line 2 Strict Standards: Only variables should be passed by reference in /in/lbi3M on line 2
Output for 5.0.5
Notice: Undefined index: HTTP_HOST in /in/lbi3M on line 2 Fatal error: Only variables can be passed by reference in /in/lbi3M on line 2
Process exited with code 255.
Output for 4.3.0 - 5.0.4
Notice: Undefined index: HTTP_HOST in /in/lbi3M on line 2