3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $x=5;/* this multiline comment */ $y=10; //this is global echo $y; echo '<br>'; function add(){ global $x,$y; $a=$x+$y; echo $a; } add(); echo $a;
based on OEXSo
Output for 5.0.4 - 5.6.28, hhvm-3.12.0, 7.0.0 - 7.1.0
10<br>15 Notice: Undefined variable: a in /in/8uOOB on line 12
Output for hhvm-3.10.0

Process exited with code 153.
Output for 4.3.0 - 5.0.3
10<br>15 Notice: Undefined variable: a in /in/8uOOB on line 12