session_set_cookie_params Set the session cookie parameters &reftitle.description; boolsession_set_cookie_params intlifetime stringpath stringdomain boolsecure&false; boolhttponly&false; boolsession_set_cookie_params arrayoptions Set cookie parameters defined in the &php.ini; file. The effect of this function only lasts for the duration of the script. Thus, you need to call session_set_cookie_params for every request and before session_start is called. This function updates the runtime ini values of the corresponding PHP ini configuration keys which can be retrieved with the ini_get. &reftitle.parameters; lifetime Lifetime of the session cookie, defined in seconds. path Path on the domain where the cookie will work. Use a single slash ('/') for all paths on the domain. domain Cookie domain, for example 'www.php.net'. To make cookies visible on all subdomains then the domain must be prefixed with a dot like '.php.net'. secure If &true; cookie will only be sent over secure connections. httponly If set to &true; then PHP will attempt to send the httponly flag when setting the session cookie. options An associative array which may have any of the keys lifetime, path, domain, secure, httponly and samesite. The values have the same meaning as described for the parameters with the same name. The value of the samesite element should be either Lax or Strict. If any of the allowed options are not given, their default values are the same as the default values of the explicit parameters. If the samesite element is omitted, no SameSite cookie attribute is set. &reftitle.returnvalues; &return.success; &reftitle.changelog; &Version; &Description; 7.3.0 An alternative signature supporting an options array has been added. This signature supports also setting of the SameSite cookie attribute. 7.2.0 &return.success; Formerly the function returned void. 5.2.0 The httponly parameter was added. &reftitle.seealso; session.cookie_lifetime session.cookie_path session.cookie_domain session.cookie_secure session.cookie_httponly session.cookie_samesite session_get_cookie_params