3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php class x { function a(){} } $x = new x(); call_user_func_array(array($x, 'undefined'), []);
based on BWXqC
Output for 5.4.0 - 5.6.28, 7.0.0 - 7.1.0
Warning: call_user_func_array() expects parameter 1 to be a valid callback, class 'x' does not have a method 'undefined' in /in/lvfkD on line 7
Output for hhvm-3.10.0 - 3.12.0
Warning: Invalid argument: function: method 'undefined' not found in /in/lvfkD on line 7
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.3.29
Parse error: syntax error, unexpected '[' in /in/lvfkD on line 7
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.4.1, 5.0.0 - 5.0.5
Parse error: parse error, unexpected '[' in /in/lvfkD on line 7
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/lvfkD on line 7
Process exited with code 255.