Increment Number

How do I create a link, that when clicked, increments a number value stored in a database?

the link would have to call a script to do the db addition before going to the link with say a header redirect

count would do the addition then send the user on to google.com

And in case the part you're stuck on is incrementing the value:

$query = 'UPDATE myTable SET counter = counter+1';
$exec = mysql_query($query);

Without more information, there's not much more to say...