Contact Management System using PHP

Presently I am giving tuition to a BCA guy. While instructing him on how to use php function for reading and writing files, I completed this contact management system.
Languages used: HTML, CSS, Javascript, PHP.
Features:

1. Add/Edit/Delete records from text file.
2. Pagination
3. Sorting
4. Session base Login
5. htaccess files for protecting direct access to data and img folder.
6. User: admin Password: 123

Login Screen:

Login Screen

 Main Panel Screen:

Main Panel

 Add New Screen:

Add New Contact

Personal info Screen:

If you are interested in taking a look at the source code, please go to this https://github.com/MawiaHL/Contact-Management.git
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