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Selected Value In Drop Down Menu


I want the first option ("selected" option) in a drop down menu to be based on the URL a user clicks on. For example, if the user clicks on the link:

layouts.php?submit=true&category=abstract

The first and selected value in the drop down menu should be abstract
Then the rest of the menu will pull from the database.

The code I am using now (below) lists all my categories from my database, but it is not putting the selected value first. How can I get this to work?? Code:




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<?php
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