New final PHP Project:

https://krisnaordinary.wordpress.com/2010/04/24/creating-a-simple-login-logout-session-using-php/

http://www.allphptricks.com/simple-user-registration-login-script-in-php-and-mysqli/

Create a web page that contains the login form
Use files and instructions from website above
have the logout redirect to a logout page

captcha

https://www.the-art-of-web.com/php/captcha/

How to create a search field with PHP and MySQLi by mutts
https://youtu.be/lwgG_uIJYQM?list=LLbTfdXy9ly-bFmtes06ioeA

https://www.youtube.com/watch?v=lwgG_uIJYQM