XAMPP is an Apache, MySQL and PHP package that is easy to install on personal computers where many developers and hobbyists like to do their local testing. The advantage of testing websites locally – on your own computer rather than an online Web server – is that you can develop and test code without clogging up Web-hosting space or risking any of the public seeing your sensitive information. You can also speed up development because local servers eliminate the need for uploading files via an FTP client, which is sometimes time-consuming. Warnings Writer Bio