无账户投票[关闭]

Question

We want to create a website. In this website, we want people to vote for a "like" like on facebook, but without accounts. Is there any solutions to make that people can only vote once (like check IP & name of the browser, ...) ?

Answer 1

Yes that's easy.

I would do a combination of saving the IP Address as well as putting a cookie on a computer.

Won't help against people using tor and anonymous browser, but basically it's the best way to do it, as it will keep 99.9% of people from voting again.

$_SERVER['REMOTE_ADDR'] = -> ip address of user

setcookie("alreadyVoted", "1", time()+3600*24);  /* expire in 24 hours so person can vote again set higher if you don't want that */