3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php function writeMsg() { global $a; $a=5; echo "Hello world!"; return "kkk"; } writeMsg(); // call the function ?>
based on LiRHM
Output for 4.3.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
Hello world!