K-Pregs (Kai Perl Regular Expressions)

K-Pregs is a library written in PHP. It comes with a bunch of functions related to Regular Expressions. With this library you no longer need to learn those strange Regular Expressions. With this library you can for example check for valid urls, emails, credit cars such as Visa, Master Card, etc... The library comes with examples. Every single function in this library has one example file to show you how to use that function. You will soon notice that you no longer need to validate anything yourself, let K-Pregs do it for you! A perfect solution to check whether a visitor has sent you correct email, url, etc.