(Warning)Only variables should be passed by ref.

Code is passing the result of the explode(lines 258 & 291) function (a value) into array_pop, but array_pop expects an array variable (by reference), not a value.

We can fix it by using an array variable to store the result of explode, and then passing that into array_pop.

Though Its just a warning, if we can avoid it, better! Cheers!!