Laravel
PHP framework for web artisans.
The GitHub page of Laravel from where you can download and see the project code is:https://github.com/laravel/laravel
Symfony
PHP framework for web applications and a set of reusable PHP components. Used by thousands of web applications (including Spotify.com) and most of the popular PHP projects (including Drupal and Magento).
The GitHub page of Symfony from where you can download and see the project code is: https://github.com/symfony/symfony
CodeIgniter
Application Development Framework. CodeIgniter is a tool kit for people who build web sites using PHP. Its goal is to enable you to develop projects much faster than you could if you were writing code from scratch, by providing a rich set of libraries for commonly needed tasks, as well as a simple interface and logical structure to access these libraries. This allows you to focus on the creativity of your project rather than get bogged down writing a lot of code from scratch.
The GitHub page of CodeIgniter from where you can download and see the project code is: https://github.com/bcit-ci/CodeIgniter
Faker
PHP library that generates fake data for you. Lets you bootstrap your database, create XML documents, fill-in your persistence for a stress test, or anonymize data taken from a production service.
The GitHub page of Faker from where you can download and see the project code is: https://github.com/fzaninotto/Faker
Mobile Detect
Lightweight PHP class for detecting mobile devices. It uses the User-Agent string combined with specific HTTP headers to detect the mobile environment.
The GitHub page of Mobile Detect from where you can download and see the project code is: https://github.com/serbanghita/Mobile-Detect