Simple example of ResultSet which can produce different Entities and populate them. Using SQLite for database you can use sqlitebrowser for fast test with different data in database
http://sourceforge.net/projects/sqlitebrowser/
Clone the repository and manually invoke composer using the shipped
composer.phar:
cd my/project/dir
git clone git://github.com/Kil0p/FabResultSet.git
cd FabResultSet
php composer.phar self-update
php composer.phar install