My subdomains redirect alls in the main domain . I am the admin. We can access to my website by the main domain or subdomain. I use that to share cookies between domain and subdomain : There is no difference if I let empty ADMIN_COOKIE_PATH, COOKIEPATH, and SITECOOKIEPATH.


Currently all subdomains have access to same cookies as main domain but they can't read these.

I read in other stackoverflow post that I must add a period cookie. But the main domain doesn't need a period to be allowed to read cookies ! The wordpress_test_cookie has the same value in domain and subdomain . the cookies set on domain and subdomain : wordpress_logged_in_, wordpress_sec_, wordpress_test_cookie and wp_lang.

This function wp_get_current_user() doesn't return user informations on subdomain but well return for main domain.

More information : I defined WP_HOME depending of $_SERVER['HTTP_HOST'): switch ( $_SERVER['HTTP_HOST'] ) { case 'suddom.website.com': define( 'WP_HOME', 'https://suddom1.website.com/' ); break; case 'visiter.activus.city': define( 'WP_HOME', 'https://suddom2.website.com/' ); break; case 'habiter.activus.city': define( 'WP_HOME', 'https://suddom3.website.com/' ); break; default: define( 'WP_HOME', 'https://website.com/' ); } define('WP_SITEURL', WP_HOME);

can this cause a problem to allow wordpress to authorize subdomain to access and read user informations ?

1 Answer 1


I resolved my problem using that: (edited

define('ADMIN_COOKIE_PATH', '/wp-admin');
define('COOKIE_DOMAIN', '.website.com');
define('COOKIEPATH', '/');
define('SITECOOKIEPATH', '.website.com');
define('COOKIEHASH', md5('website.com') );`

COOKIEHASH is essential

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