3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $hola = "hola"; print_r($hola); var_dump($_SERVER['url']);
Output for 5.3.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
hola Notice: Undefined index: url in /in/21FJW on line 4 NULL
Output for 4.3.0 - 5.2.17
hola Notice: Undefined index: url in /in/21FJW on line 4 NULL