Hello, Please forgive me if I'm missing something. I have made a custom BB Code that is supposed to only accept numbers. For instance, you'll put something like [mycode]1023982323[/mycode] and it takes that number and uses it for a HTML class. Whoever, there seems to be an issue in that, I'm unable to get regex to only allow numbers under Custom BB Code. Currently my Option Match Regular Expression has: (/\d+/) and I've also tried /\d+/ Neither of these worked. I will be honest, I have very little familiarity with regex for PCRE. Would anyone be able to help me with this?