因此，如果您只想在主页上显示登录用户感兴趣的帖子，可以使用the pre_get_posts-Action:

add_action( \'pre_get_posts\', \'wp123234_user_specific_loop\' );
function wp123234_user_specific_loop( $query ){
    if( ! is_user_logged_in() ) //Just return, if the user is not logged in.
        return;

    if( ! $query->is_main_query() ) //If its not the main query return
        return;

    if( !$query->is_home() ) //If its not the "home"-query return
        return;

    $interests = get_user_meta( get_current_user_id(), \'interests\', true );
    if( empty( $interests ) ) //If the user has no interests return
        return;

    /*Now, we want to display the specific posts.*/

    //Assuming, the $interests-Array contains category-IDs
    //$query->set( \'category__in\', $interests );

    //Assuming, the $interests-Array contains custom fields of posts
    $query->set( \'meta_query\', array( array(
            \'key\'     => \'interests\',
            \'value\'   => $interests,
            \'compare\' => \'IN\',
        ) ) );

    //Assuming, you want to ignore sticky posts, since they might show up, although the
    //user is not interested in
    $query->set( \'ignore_sticky_posts\', true );
}