Here it is! The code for my ChemicalPHP interpreter is here. Have fun modifying and making your own programs!

... WHAT? :o An interpreter for what language?

Yea so I curiously studied your source code, It is pretty interesting, and much shorter than I expected May I recommend studying "Reverse polish notation" using the "Shunting yard algorithm" If you study the wikipedia page(s) then you'll be able to build much more complex parsing engines It converts an expression that needs parentheses into one that doesnt (3-5)/(1+2) ↓↓↓↓↓↓ 3 5 - 1 2 + /

Thanks for the positive feedback, and I'll defiantly go and try that out. Also, it's literally my first program. Ever. So err...yeah.

dangit, definitely*