3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $a = &var_dump(&$a);
Output for 5.4.0 - 5.4.8
Fatal error: Call-time pass-by-reference has been removed in /in/KQr2H on line 2
Process exited with code 255.
Output for 5.3.0 - 5.3.29
Deprecated: Call-time pass-by-reference has been deprecated in /in/KQr2H on line 2 &NULL Strict Standards: Only variables should be assigned by reference in /in/KQr2H on line 2