我正在尝试删除一些cookie，这些cookie设置用于在用户特别想要注销网站时控制持久登录。

我以为这很简单：

function remove_user_cookie() {

    unset($_COOKIE[\'woai\']);
    unset($_COOKIE[\'woak\']);

}
add_action(\'wp_logout\', \'remove_user_cookie\');

我也尝试过：

function remove_user_cookie() {

    if( $_GET[\'action\'] == \'logout\' ) :

        unset($_COOKIE[\'woai\']);
        unset($_COOKIE[\'woak\']);

    endif;

}
add_action(\'wp_logout\', \'remove_user_cookie\');

但是，用户的cookie保持不变，因此他们会自动重新登录。

我不确定wp\\u注销操作是否不起作用，或者它是否与我自动登录用户的代码冲突。

现在，我在标题中有这个。php：

<?php if( !is_user_logged_in() ) :

    // check if user has cookies
    if ( isset($_COOKIE[\'woai\']) && isset($_COOKIE[\'woak\']) ) :

        $args = array(
            \'meta_key\' => \'login_key\',
            \'meta_value\' => $_COOKIE[\'woak\'],
            \'meta_compare\' => \'=\',
            \'fields\' => \'ID\',
            \'include\' => $_COOKIE[\'woai\']
        );
        $user_query = new WP_User_Query($args);

        if( $user_query->results[0] != \'\' || $user_query->results[0] != NULL ) :

            // get user id and login name
            $user_id = $user_query->results[0];
            $user_login = get_user_by( \'id\', $user_id );

            // log the user in
            wp_set_current_user( $user_id, $user_login->user_login );
            wp_set_auth_cookie( $user_id );

            do_action( \'wp_login\', $user_login->user_login );

        endif;

    endif; // end if cookies

endif; ?>

当用户登录时，他们会得到一个新的密钥集：

function set_user_cookie($user_login) {

    // if they have cookies, delete them
    if ( isset($_COOKIE[\'woai\']) && isset($_COOKIE[\'woak\']) ) :
        unset($_COOKIE[\'woai\']);
        unset($_COOKIE[\'woak\']);
    endif;

    $user_id = get_user_by( \'login\', $user_login );

    // generate new key for user
    $salt = wp_generate_password(20); // 20 character "random" string
    $key = sha1($salt . $email . uniqid(time(), true));

    // set new cookies
    setcookie("woai", $user_id->ID, time()+31536000);  /* expire in 1 year */
    setcookie("woak", $key, time()+31536000);  /* expire in 1 year */

    // update the db
    update_field(\'field_53c3de9cd031e\', $key, \'user_\'.$user_id->ID.\'\');

}
add_action(\'wp_login\', \'set_user_cookie\', 10, 1);

function remove_user_cookie() {

setcookie("woak");
setcookie("woai");

}
add_action(\'wp_logout\', \'remove_user_cookie\');

add_action(\'wp_logout\', \'doMyLogoutCall\');
add_action(\'init\', \'runInitLogoutProcess\');

function doMyLogoutCall()
{?>
 <img style="display:none" src="<?php echo home_url();
    ?>?loadwordpressbyimage=1">
<?php
}

function runInitLogoutProcess()
{
  // check if wordpress action is set to logout and clear cookie
  if (isset($_GET)) {
        if (isset($_GET[\'action\'])) {
            if ($_GET[\'action\'] == \'logout\') {
                setcookie(\'woai\', \'\', time() - 3600, COOKIEPATH, COOKIE_DOMAIN, false);
               setcookie(\'woak\', \'\', time() - 3600, COOKIEPATH, COOKIE_DOMAIN, false);
            }
        }

  // check if your wp_logout hook is called and do the same.
      if (isset($_GET[\'loadwordpressbyimage\'])) {
            if ($_GET[\'loadwordpressbyimage\'] == 1) {
                setcookie(\'woak\', \'\', time() - 3600, COOKIEPATH, COOKIE_DOMAIN, false);
               setcookie(\'woai\', \'\', time() - 3600, COOKIEPATH, COOKIE_DOMAIN, false);
            }
        }


}