3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php function f(&$x) {echo $x;} $x = 1; f(@$x); echo $x;
Output for 7.0.0 - 7.1.0
Notice: Only variables should be passed by reference in /in/A2iVi on line 4 11
Output for 5.1.2 - 5.6.28
Strict Standards: Only variables should be passed by reference in /in/A2iVi on line 4 11
Output for 4.3.0 - 5.1.1
11