CodeIgniter vs Symfony: What are the differences?
Developers describe CodeIgniter as "A Fully Baked PHP Framework". CodeIgniter is a proven, agile & open PHP web application framework with a small footprint. It is powering the next generation of web apps. On the other hand, Symfony is detailed as "A PHP full-stack web framework". Symfony is written with speed and flexibility in mind. It allows developers to build better and easy to maintain websites with PHP. Symfony can be used to develop all kind of websites, from your personal blog to high traffic ones like Dailymotion or Yahoo! Answers.
CodeIgniter and Symfony can be categorized as "Frameworks (Full Stack)" tools.
"Mvc", "Easy setup" and "Open source" are the key factors why developers consider CodeIgniter; whereas "Open source", "Php" and "Community" are the primary reasons why Symfony is favored.
CodeIgniter and Symfony are both open source tools. Symfony with 21.1K GitHub stars and 7.01K forks on GitHub appears to be more popular than CodeIgniter with 17.4K GitHub stars and 7.72K GitHub forks.
According to the StackShare community, Symfony has a broader approval, being mentioned in 374 company stacks & 277 developers stacks; compared to CodeIgniter, which is listed in 261 company stacks and 105 developer stacks.