This will convert Bulletin Board Code into readable HTML, good for comments, forums, etc.
This blacklist lookup function is a modification of this snippet. The difference is, that it returns if it suspects an ip is a spammer. If 50% or more of the lookups think your a spammer, the function returns true otherwise false.
kelimeleri büyük harflere çevirir
If you need an Email Validator Function, consider this version that includes also the check against common temporary mail services which should be blocked, since their emails work only for some minutes.