3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php function foo() { return null; } $bar = &foo();
Output for 4.4.0 - 4.4.9, 7.0.0 - 7.1.0
Notice: Only variables should be assigned by reference in /in/FotqO on line 7
Output for 4.3.0 - 4.3.11, 5.0.0 - 5.0.4, hhvm-3.10.0 - 3.12.0
Output for 5.0.5 - 5.6.28
Strict Standards: Only variables should be assigned by reference in /in/FotqO on line 7