I have this kind of strings:  {test1|test2|test3} This is easy to match with something like:  ~{(.*?)}~  But I would like to be able to match strings like: {test1|test2|test3{subtest1|subtest2}} or {test1|test2|test3{subtest1|subtest2{subsubtest1|subsubtest2|subsubtest3}}} I can't figure out how I could match that in the ...

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, ...