Warning: plopg(): Argument #1 ($a) must be passed by reference, value given in /in/W2hGr on line 12
Warning: plopg(): Argument #2 ($b) must be passed by reference, value given in /in/W2hGr on line 12
plop is 12
Warning: Parameter 1 to plopg() expected to be a reference, value given in /in/W2hGr on line 12
Warning: Parameter 2 to plopg() expected to be a reference, value given in /in/W2hGr on line 12
plop is 12