3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php function a(&$a) { } $b = 3; a(&$b);
Output for 5.4.0 - 5.4.19
Fatal error: Call-time pass-by-reference has been removed in /in/m6r0G on line 5
Process exited with code 255.
Output for 5.3.0 - 5.3.29
Deprecated: Call-time pass-by-reference has been deprecated in /in/m6r0G on line 5