3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php function f() { global $x; $x = $x + 10; return 1; } $x = 0; $x = $x + f(); var_dump($x);
based on 3lkba
Output for 5.1.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
int(11)
Output for 4.3.0 - 5.0.5
int(1)