PHP frameworks like CodeIgniter simplify website development by separating the business logic from the user interface using the MVC pattern. This allows changes to individual elements without affecting other elements, accelerating development. Frameworks save time by avoiding repetitive coding and provide stable applications with effective database interaction and presentation layers. Choosing a framework depends on factors like the intended users, developer experience, and project needs. CodeIgniter is well-suited for projects requiring low overhead, compatibility, and clear documentation.

2. Choose the right PHP framework for your website?
PHP frameworks are based on a feature called the Model View Controller (MVC) or
that logic or pattern in overall programming which separates business logic from the
UI, making way for modification of one independent of the other.
In other words, MVC simplifies the process of developing application changes in the
individual elements does not affect the rest of the elements thus accelerating the
process of PHP coding and increasing its efficiency.

3. In short PHP frameworks –
 Frameworks are of great use right from
veterans to beginners in coding- helps in
building more stable apps with effective
database interaction and codes on the
presentation layer.
 There is more time which can be spared
to create the actual web application, as
against spending time in writing
repetitive codes over and over again.
 Another instance which warrants use of
PHP frameworks is when there are
projects taken up which involves a lot of
monotonous coding, thus executing the
projects becomes less monotonous.

4.  Who will be a user of your application on the
whole? Greater the number of people who use
the application better to opt for a popular
framework among developers.
 For smaller and more personal web
applications, it will be wiser to choose a web
application which you are more comfortable
with.
 Remember to try out several PHP frameworks
in the beginning so as to land the one which
suits your needs the best.
Make a wise choice of a PHP framework

5. Code Igniter will just about fit your bill if you need
the following
 A framework with the least virtual footprint and low configuration required.
 Improved performance along with a broad compatibility with most standard hosting
accounts that can run multiple PHP versions and configurations.
 Reduction in coding rules without any compromise on functionality of the program

6. Continue…
 No necessity to really learn a templating language so as to work on this
framework ( however a template parser is optionally available in the event of
needing one)
 You are particular about clear and specific documentation of projects.