RedBeanPHP
RedBean is free, BSD licensed, open-source object-relational mapping software written by Gabor de Mooij. It currently only supports PHP. Although it can be used as a stand-alone library there is also an integrated edition available for the Zend Framework.
Features
RedBean is different from other ORM layers because it requires no configuration in XML, YAML or JSON but it designs a database schema on its own by analyzing the PHP code, this is sometimes called Virtual ORM (ORM without mappings). This is possible because of Reflection functionality built into PHP. RedBean not only creates a database on the fly it also monitors performance, handles transactions and it automatically prevents race conditions. It scans your data and adjusts the column types to fit your object properties. If your models are stabilized you can freeze the database. This way RedBean is easy to develop with but is also extremely fast on production servers.
History
Not much is known about RedBean's history, due to lack of information on the website. The main author of RedBean is Gabor de Mooij, an ICT specialist from the Netherlands.