You are missing the path parameter. Try setcookie( ‘panier’, $cookie_user_id, time() + DAY_IN_SECONDS, “https://wordpress.stackexchange.com/”); Also, don’t put the callback function in a conditional, put the conditional statement inside the function.
I resolved my problem using that: (edited define(‘ADMIN_COOKIE_PATH’, ‘/wp-admin’); define(‘COOKIE_DOMAIN’, ‘.website.com’); define(‘COOKIEPATH’, “https://wordpress.stackexchange.com/”); define(‘SITECOOKIEPATH’, ‘.website.com’); define(‘COOKIEHASH’, md5(‘website.com’) );` COOKIEHASH is essential
My problem was due to bad use of COOKIEPATH. The overwrite of COOKIE PATH blocked the browser to display and access to wordpress_logged_in_ cookie and its reading. The browser Safari was entirely blocked and didn’t allow access to wordpress dashboard. Also the error “Cookie blocked : please activate cookies” of browser was entirely due to … Read more
What are the issues using the Test Cookie Fix?
Why do you think you can only hook into init via Plugin, rather than via the Theme? The setup_theme hook, which fires when the Theme is setup, fires before the init hook. Thus, a Theme is perfectly capable of hooking into init.
You can reset the security keys, forcing all cookies to expire and all users to log back in. Edit wp-config.php and change even one character in any of the security strings. There’s a plugin that allows you to set the expiry time on your user’s cookies. I haven’t personally used it, so proceed with caution: … Read more
Unfortunately, since we aren’t able to see any of your current code, and it’s sort of a vague description of your implementation, it’ll be difficult for anyone to post actual code that will work for you. But to point you to some resources that might help, you might find these helpful: W3 Schools – PHP … Read more
If you want to see which cookies are loaded with your WordPress install, you can see it in your browser. The number of cookies differs by the number of used plugins, actions on the site, host etc. IE for Google Chrome: rightclick on the site and choose Inspect Element. Click the resources tab and view … Read more
I solved the problem. Here’s the solution. Add this line to your wp-config.php : define(‘COOKIE_DOMAIN’, ‘.yourdomain.com’); save the file and upload. That’s all.
With honor to @Wyck’s link, I managed to add a language variable by adding an action hook to init and set the locale into cookie using PHP’s setcookie() function. For details, visit: Setting custom cookies in WordPress