3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php function f($arg=null, $arg2) { var_dump($arg, $arg2); } f();
based on f07XW
Output for 7.1.0
Fatal error: Uncaught ArgumentCountError: Too few arguments to function f(), 0 passed in /in/mkNUJ on line 7 and exactly 2 expected in /in/mkNUJ:3 Stack trace: #0 /in/mkNUJ(7): f() #1 {main} thrown in /in/mkNUJ on line 3
Process exited with code 255.
Output for 5.1.0 - 5.6.28, 7.0.0 - 7.0.14
Warning: Missing argument 2 for f(), called in /in/mkNUJ on line 7 and defined in /in/mkNUJ on line 3 Notice: Undefined variable: arg2 in /in/mkNUJ on line 4 NULL NULL
Output for hhvm-3.12.0
Warning: f() expects exactly 2 parameters, 0 given in /in/mkNUJ on line 3 Notice: Undefined variable: arg2 in /in/mkNUJ on line 4 NULL NULL
Output for hhvm-3.10.0

Process exited with code 153.
Output for 4.3.0 - 5.0.5
Warning: Missing argument 2 for f() in /in/mkNUJ on line 3 NULL NULL