3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $x=5;/* this multiline comment */ $y=10; //this is global $txt="hello"; $txt.="world"; echo $txt; echo "hello","how","are","you", $y;
based on WaVp0
Output for 4.3.0 - 7.2.0
helloworldhellohowareyou10