I had this question after viewing Should I use post or get to go to a specific record in a list of records
When a user clicks on this link I want the status of the post to change from "unread" to "read". using the GET method I think I would have to perform the update on the page that the href actually links to i.e.:
_id=<?php echo $contact_id; ?>">
so, my SQL query would run on the contact_detail.php page. I don't really like this even though it would work. It is unlikely that the administrator of the site is going to fiddle with the values in the URL to set random messages to read but I want to try prevent it anyway. So, would the way be then to perform the update when the user actually clicked the link?