3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $hola = "hola"; print_r($hola); var_dump($_POST['url']);
Output for 5.3.0 - 7.1.0
hola Notice: Undefined index: url in /in/sB9TF on line 4 NULL
Output for 4.3.0 - 5.2.17
hola Notice: Undefined index: url in /in/sB9TF on line 4 NULL