bool(false)
Fatal error: Uncaught TypeError: call_user_func(): Argument #1 ($callback) must be a valid callback, no array or string given in /in/mTp3J:4
Stack trace:
#0 {main}
thrown in /in/mTp3J on line 4
Process exited with code 255.
Output for 8.0.0 - 8.0.9
bool(false)
Fatal error: Uncaught TypeError: call_user_func(): Argument #1 ($function) must be a valid callback, no array or string given in /in/mTp3J:4
Stack trace:
#0 {main}
thrown in /in/mTp3J on line 4
Process exited with code 255.
bool(false)
Warning: call_user_func(): First argument is expected to be a valid callback in /in/mTp3J on line 4
Output for 4.3.0 - 4.3.1
bool(false)
Warning: call_user_func() [http://www.php.net/function.call-user-func]: First argument is expected to be a valid callback in /in/mTp3J on line 4