3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php function test () { global $test_var; $test_var = 'Hello World!'; } test(); echo $test_var;
Output for 4.3.0 - 5.6.28, hhvm-3.12.0, 7.0.0 - 7.1.0
Hello World!
Output for hhvm-3.10.0

Process exited with code 137.