phpMyAdmin is a tool intended to handle the administration of MySQL over the Web. It can create, rename, and drop databases, create/drop/alter tables, delete/edit/add fields, execute any SQL statement, manage keys on fields, create dumps of tables and databases, export/import CSV data, and administrate one single database and multiple MySQL servers.
PHP System Administration Toolkit is a toolkit/framework for the rapid development of system and network administration Web interfaces in PHP. It tries to take as much common work from the developer as possible, and provides object-oriented interfaces to many common services. It aims to make the applications built using it easily customizable, extensible, and maintainable.