CodeIgniter (CI) is an open source web application framework with a small footprint, built for PHP coders who need an appropriate toolkit to create full-featured web applications. CodeIgniter provides a rich set of libraries with a simple interface and logical structure to access these libraries. It is based on the popular Model-View-Controller development pattern. Where View and Controller classes are a necessary part of development and Model is entirely optional and rarely needed. Model usually uses to connect with the database. View received data from controller and other HTML markup. A View is every page you see over the internet and Controller is responsible to handle the requests, manipulating models or other controller. CodeIgniter use in building dynamic web sites with PHP. And its main goal is to allow user to develop lightning fast applications. In Solver Circle Ltd there are some outstanding performers who prefer to use CodeIgniter. When a client needs a quick and efficient project then he should choose to use Codeigniter as PHP framework because it is distinguished for its speed. And Solver Circle has some professional and effective CI experts who will always do the best.