I'm not familiar with PHP / MySQL and Emails. And I'm pretty sure this question has been asked somewhere already, but I cannot find it. So I apologise if this is troubling and thank you in advance!

Is it possible to do something that user has to click on a link in email first before the user is added into database???

And you know how, for some websites, they have a unique web address for each email validation (Shown in red on the picture)? How do they create a webpage that's unique in for every email ?

Picture credited: <https://kayako.atlassian.net/wiki/download/attachments/5734920/subs-validation.png?version=1&modificationDate=1291956283000&api=v2>

[![enter image description here](https://i.stack.imgur.com/KBYKS.png)](https://i.stack.imgur.com/KBYKS.png)

Thank you a lot for the attention! If it's possible, I prefer not having straight scripts that I can copy and paste because I like to find out myself :P But please do give me some hints because I'm totally lost.

If there's anything that's not clear, please tell me, I'll try my best to clarify it!