I am working on making a bbcode system with php using preg_replace(), and I am making it so that other tags will not work inside of a code block. This is the code I am currently using, it almost works: /(?!\[code\])(.*)(\[b\])(.+)(\[\/b\])(.*)(?<!\[\/code\])/Usi  what I want it to do is if [*code] and [*/code] are around the text inside, ...