Warning: byref_function(): Argument #1 ($a) must be passed by reference, value given in /in/4jNQ8 on line 11
Warning: byref_function(): Argument #2 ($b) must be passed by reference, value given in /in/4jNQ8 on line 11
Warning: Undefined variable $a in /in/4jNQ8 on line 13
Warning: Undefined variable $b in /in/4jNQ8 on line 13
NULL
NULL
Warning: Parameter 1 to byref_function() expected to be a reference, value given in /in/4jNQ8 on line 11
Warning: Parameter 2 to byref_function() expected to be a reference, value given in /in/4jNQ8 on line 11
Notice: Undefined variable: a in /in/4jNQ8 on line 13
Notice: Undefined variable: b in /in/4jNQ8 on line 13
NULL
NULL
Warning: Parameter 1 to byref_function() expected to be a reference, value given in /in/4jNQ8 on line 11
Notice: Undefined variable: a in /in/4jNQ8 on line 13
Notice: Undefined variable: b in /in/4jNQ8 on line 13
NULL
NULL