NORM is a simple ORM for PHP. It works with PDO and MySQL. Unlike other ORMs, NORM is neither complicated, convoluted, nor daunting. You can easily throw a regular object at NORM, tie in a couple other objects to relate to it, store it in a database, and return it as a regular associative array or regular object that you can toss into JSON output or a template. It lets you create and store your objects without worrying about SQL, since NORM takes care of building and managing database tables.
DBPersister (database persistent library) is a PHP library which helps you simply and clearly use your database, taking advantage of powerful object oriented programming. You can use DBPersister to manage data from your database to your application. You can do all the boring operations (like loading a single record, saving a single record (insert, update, replace), and deleting a single record) without writing SQL code.