Hi, I asking for help in my PHP code optimization. I try to rewrite my old/slow BBCode conversion function to use regex. The allowed BBCodes are [ b]text[ /b] [ i]text[ /i] [ url]domain.com[ /url] or [ url]domain.com|domainname[ /url] [ img]filename.ext[ /img] or [ img]filename.ext|description[ /img] It is possible to construct ...