Php/mysql - How To Pass Variables From Class To Separate Index.php? Profile Pages?

I am new to PHP and trying to figure this out- right now on one page I have a search form that creates a div on the page for any users that meet what was entered in the form here:

Solution 1:

If I understand, you're looking to use query strings?

It's kinda like post, but you can see the parameters in the url. Check this.

You might want to look into the php function http_build_query to parse the query string for you.