A set of links that helped me to get through to this far of this project

Form helpers
https://ellislab.com/codeigniter/user-guide/helpers/form_helper.html

Session helpers
https://ellislab.com/codeigniter/user-guide/libraries/sessions.html

https://www.youtube.com/watch?v=VI9rz4UUAOc
https://www.youtube.com/watch?v=l3bt88U0SI4
https://www.youtube.com/watch?v=fwUg3qvEJJ8
https://www.youtube.com/watch?v=IOZqRgOgSu4
https://www.youtube.com/watch?v=ck5pTkRumPw
https://www.youtube.com/watch?v=K71j-rWXejk


Form validation
https://ellislab.com/codeigniter/user-guide/libraries/form_validation.html
https://www.youtube.com/watch?v=T39lkofTq2M
http://www.formget.com/form-login-codeigniter
http://codesamplez.com/development/codeigniter-forms-tutorial
http://codesamplez.com/codeigniter-tuto

CodeIgniter Framework

CodeIgniter Framework is one of the most popular framework nowadays that is used by many developers around the world. We were adviced to follow a framework for the development process in our project. We have selected the CodeIgniter Framework. To study the framework, we have taken several tutorials out of YouTube, as well as some downloaded video material.

https://www.youtube.com/watch?v=gDHeKJef8kk
https://www.youtube.com/watch?v=ck5pTkRumPw
https://www.youtube.com/watch?v=IOZqRgOgSu4
https://www.youtube.com/watch?v=HoRMvG5OK5U
https://www.youtube.com/watch?v=IOZqRgOgSu4

these tutorials were helpful to learn the code igniter process