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1. Demystifying Yii Framework an Overview on Yii
Capabilities
Yii is a free, open-source Web application development
framework written in PHP5 that promotes clean, DRY (Don't
repeat yourself) design and encourages rapid development. It
works to streamline your application development and helps to
ensure an extremely efficient, extensible, and maintainable end
product.
Being extremely performance optimized, Yii is a perfect choice
for any sized project. However, it has been built with
sophisticated, enterprise applications in mind. You have full
control over the configuration from head-to-toe (presentation-
to-persistence) to conform to your enterprise development guidelines. It comes packaged with
tools to help test and debug your application, and has clear and comprehensive documentation.
Following some of the features that clearly distinguishes Yii from other development frameworks:
Avoids starting from scratch:
As with most of the web application development frameworks, Yii allows you to focus on the
unique business needs of the application instead of writing your own code to handle all aspects of
authentication, form validation, SQL injection attack, prevention etc. Yii offers much more than
other frameworks by providing utilities and extensions for generic functionality and UI controls.
This really helps in Rapid Application Development as the available extensions are easily
customizable for any business needs.
Integrated with jQuery, Yii comes with a set of AJAX-enabled widgets, such as auto-complete
input field, tree view, data grid, which enables writing highly efficient and versatile user interface
extremely simple.
No PHP4 baggage:
Yii is completely based on PHP5. It is a 100% OOP framework. Although there are other PHP
frameworks which have upgraded to PHP 5, they still carry the baggage of backward compatibility
on PHP4. Yii doesn't have that baggage as it was conceived and developed on PHP5, completely.
Performance Orientation
Yii is a high performance PHP framework. Yii is so much faster because it is using the lazy loading
technique extensively. For example, it does not include a class file until the class is used for the
first time; and it does not create an object until the object is accessed for the first time. Other
frameworks suffer from the performance hit because they would enable a functionality (e.g. DB
connection, user session) no matter it is used or not during a request The performance of Yii can
further be increased by using APC (Alternative PHP Cache)
Database Programming with ORM
Yii provides powerful support for database programming.

2. Built on top of the PHP Data Objects (PDO) extension, Yii Data Access Objects (DAO) enables
accessing to different database management systems (DBMS) in a single uniform interface.
Applications developed using Yii DAO can be easily switched to use a different DBMS without the
need to modify the data accessing code.
Yii Query Builder offers an object-oriented method for building SQL queries, which helps reduce
risk of SQL injection attacks.
And Yii Active Record (AR), implemented as a widely adopted Object-Relational Mapping (ORM)
approach, further simplifies database programming. Representing a table in terms of a class and a
row an instance, Yii AR eliminates the repetitive task of writing those SQL statements that mainly
deal with CRUD (create, read, update and delete) operations.
Although the included Yii database features can handle nearly all database-related tasks, you can
still use your own database libraries in your Yii application. As a matter of fact, Yii framework is
carefully designed to be used
together with other third-party
libraries.
Apart from the listed features,
there are other interesting
features like Security,
Automatic generation of WSDL service specifications, Automatic code generation; Layered Caching
Scheme etc. make Yii, a distinctive PHP Framework for web application development.
For more information about Yii Framework Development, Please visit: Hire Yii Developers