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run code in 150+ php & hhvm versions
Bugs & Features
<?php function not($f) { return function () use ($f) { return !call_user_func_array($f, func_get_args()); }; } var_dump(array_filter([null, 0, 1, 2], not("is_null")));
Output for 5.4.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
array(3) { [1]=> int(0) [2]=> int(1) [3]=> int(2) }
Output for 5.3.0 - 5.3.29
Parse error: syntax error, unexpected '[', expecting ')' in /in/0S8vp on line 9
Process exited with code 255.
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.2.17
Parse error: syntax error, unexpected T_FUNCTION in /in/0S8vp on line 4
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 T_FUNCTION in /in/0S8vp on line 4
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/0S8vp on line 4
Process exited with code 255.