3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php test($undefined); function test($parameter = 'hello') { echo $parameter; }
Output for 5.0.4 - 7.1.0
Notice: Undefined variable: undefined in /in/7HIh0 on line 3
Output for 4.3.0 - 5.0.3
Notice: Undefined variable: undefined in /in/7HIh0 on line 3