The TableGateway is the basic way to access database by zend-framework2
The tablegateway object is intended to provide an object that represents a table in a database, and the methods of this object mirror the most common operations on a database table.
There are two primary implementations of the tablegatewayinterface that are of the most useful: abstracttablegateway and tablegateway. The abstracttablegateway is an abstract basic implementation that provides functionality for select(), insert(), update(), delete(), as well as an additional API for doing these same kinds of tasks with explicit sql objects. These methods are selectWith(), insertWith(), updateWith() and deleteWith(). In addition, abstracttablegateway also implements a “Feature” API, that allows for expanding the behaviors of the base tablegateway implementation without having to extend the class with this new functionality. The tablegateway concrete implementation simply adds a sensible constructor to the abstracttablegateway class so that out-of-the-box, tablegateway does not need to be extended in order to be consumed and utilized to its fullest.
