What is it?

It seems like PHPMyAdmin has existed ever since PHP started. It is most probably one of the longest running open source projects in the history of PHP. PHPMyAdmin is a web-based management GUI for managing MySQL databases.

How to support

PHPMyAdmin has a page dedicated to donations on their site. Those options include Paypal donations as well as check, wire and stock donations. They also have Flattr and accept sponsors.