Fatal error: Uncaught TypeError: call_user_func(): Argument #1 ($callback) must be a valid callback, function "function () { return "asd";}" not found or invalid function name in /in/NuDQG:3
Stack trace:
#0 {main}
thrown in /in/NuDQG on line 3
Process exited with code 255.
Output for 8.0.0 - 8.0.9
Fatal error: Uncaught TypeError: call_user_func(): Argument #1 ($function) must be a valid callback, function "function () { return "asd";}" not found or invalid function name in /in/NuDQG:3
Stack trace:
#0 {main}
thrown in /in/NuDQG on line 3
Process exited with code 255.
Warning: call_user_func() expects parameter 1 to be a valid callback, function 'function () { return "asd";}' not found or invalid function name in /in/NuDQG on line 3
Warning: call_user_func(function () { return "asd";}): First argument is expected to be a valid callback in /in/NuDQG on line 3
Output for 4.3.0 - 4.3.1
Warning: call_user_func(function () { return "asd";}) [http://www.php.net/function.call-user-func]: First argument is expected to be a valid callback in /in/NuDQG on line 3