3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php echo "Your User Agent is :" . $_SERVER ['HTTP_USER_AGENT']; ?> - See more at: http://www.w3resource.com/php-exercises/php-basic-exercises.php#sthash.BzJmdp5O.dpuf
Output for 5.3.0 - 7.1.0
Notice: Undefined index: HTTP_USER_AGENT in /in/Pg6jH on line 2 Your User Agent is : - See more at: http://www.w3resource.com/php-exercises/php-basic-exercises.php#sthash.BzJmdp5O.dpuf
Output for 4.3.0 - 5.2.17
Notice: Undefined index: HTTP_USER_AGENT in /in/Pg6jH on line 2 Your User Agent is : - See more at: http://www.w3resource.com/php-exercises/php-basic-exercises.php#sthash.BzJmdp5O.dpuf