Are you tired of people submitting the same information via your online forms multiple times and cluttering up your database and mail? If yes, this PHP snippet could be your solution. With this function (and native PHP session support) it’s possible to prevent a multiple form submission while using some server side form field validation. The script checks the unique string from the current submission against the post before and will stop if the submitted form or string is the same as before. Continue reading Prevent multiple form submission