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Showing results for tags 'user'.
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Here's a scenario. I am setting up a sponsor referral link. If any user signs up on the site through that referral link, they will be matched with the sponsor of that referral link. Normally I can do this using a simple GET method but I want to use cookies so that the referral link will be valid for 30 days. So if a user decides to come back to the site a week later, they will still be matched with that sponsor assuming they haven't deleted their cookies. For eg. // referral link mysite.com/signup?sponsor=john Here is my cookie code. The issue i am having is that if I go to a different page on the site and come back to the signup page, the cookie gets reset or becomes invalid. Can you tell me what i'm doing wrong? Do I have to use the database to store the cookies or what? $get_user = $_GET['sponsor']; $number_of_days = 30 ; $date_of_expiry = time() + 60 * 60 * 24 * $number_of_days ; setcookie( "sponsor", $get_user, $date_of_expiry); if(isset($_COOKIE['sponsor'])) { echo 'set'; } else { echo 'not set'; }
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SELECT user_id FROM users WHERE active = :active ORDER BY RAND() LIMIT 1 The above query works. But what if the users table is filled with thousands of users? Will this query break or be very slow? If so, what's the alternative solution to this?