MySQL conditions? I dont understand how this works

What I am trying to understand is how MySQL works. This is what Im trying to create:

a database with all makes, models, years and corresponding engine sizes.

Someone wrote me a script that scrapes a website that already has this information but I dont understand how I use the PHP script to upload the info into MySQL?

Also, does anyone have any resources on how mysql works? I dont understand how I create conditions to show information. For example, If I have 3 different screens, the first is make (that shows all car makes), second is model (shows all corresponding models for the selected make), third is year (shows only the years the selected make was produced) how do I have the fourth page show the corresponding results (engine type)?

TIA

 

You should consider reading tutorials on how these works e.g. http://www.php-mysql-tutorial.com/

 

Thanks for the info. I'm a dunce when it comes to this stuff.