abc
Fatal error: Uncaught TypeError: a::test(): Return value must be of type string, none returned in /in/dtuDG:6
Stack trace:
#0 /in/dtuDG(9): a->test()
#1 {main}
thrown in /in/dtuDG on line 6
Process exited with code 255.
abc
Fatal error: Uncaught TypeError: Return value of a::test() must be of the type string, none returned in /in/dtuDG:6
Stack trace:
#0 /in/dtuDG(9): a->test()
#1 {main}
thrown in /in/dtuDG on line 6
Process exited with code 255.