Email/Code Verify Script - Only Verification Part Needed

I just need a small verification script that updates the accounts table in a MYSQL database to verified (1) if a link matches the email address and key code for that account. Here is an example of the link structure this script needs to understand: [login to view URL] The email address and key are already stored in a table called "emails" under the two columns "email" and "accessKey". So all this script needs to do is simply check to see if the email address and key are correct in the link by comparing it to what's in the database and if they do, set the account to verified in the accounts table. I've attached the SQL structure for the two tables here as well.