I'm getting more and more into this whole plugin thing, and in my electronic travels, I've been dealing a lot with the Admin option panel. A problem that I have noticed is that displaying data on screen using GET variables from the URL is a little complicated. This is because WP uses specific pages in the admin panel, which means any plugin interface is already a variable.
What is the best way to deal with these variables?
Say for example the page is options-general.php?page=example-plugin/example-plugin.php&display=100. How can I change that to display=50 in the easiest way?