phpPgAdmin is a fully functional PHP-based administration package for PostgreSQL. It has all the basic functionality you need to completely administer a PosgreSQL server and/or database, including the ability to administer views, sequences, stored procedures, and triggers. Features include the ability to create and drop databases; create, copy, drop, and alter tables/views/sequences/functions/triggers; edit and add fields (to the extent Postgres allows); execute any SQL-statement, even batch-queries; manage keys on fields; create and read dumps of database and tables; and administer one single database, multiple servers, and Postgres users/groups.
phpGrid provides professional-looking Ajax-enabled grid-based editing, create, read, update, and delete (CRUD) operations for Web developers in as little as two lines of code. It features cross-browser inline editing, support for all HTML form controls, integrated search toolbar, a master detail datagrid, image display, MS Excel and HTML data export, permission control, a theme roller, built-in record sorting by any column, support for major databases including MySQL, SQL Server, and Oracle, support for large database record sets, and WYSIWYG and Ajax file upload.
Squarebase is a Web-based interface for MySQL databases. The basic idea is that it builds a database (called the "metabase") that describes the structure of the database. The information in the metabase is used to format lists and forms for browsing and editing the contents of the database.