Hi, I have to secure many sections in my website. Should I use some PHP script for it? Is there any script which allows registrations only with invitation? Thanks.
you can send a generated invitation key by php. and create a database to store the users and their keys so no doubles. I think that php is what you need.
Try this PHP script that I created a while back: http://russcom.org/scripts/details.php?do=show&script=http://russcom.org/scripts/russcom.loginphp.zip It's a login script.