我想我需要知道如何为初学者将元数据调用到元数据库中。

我正在使用

$posts = get_posts(array(
        \'post_type\'   => \'slidertype\',
        \'post_status\' => \'publish\',
        \'posts_per_page\' => -1,
        \'fields\' => \'ids\'
        )
    );
    //loop over each post
    foreach($posts as $p){
        //get the meta you need form each post
        $thumb = get_post_meta($p,"_thumbnail_id",true);

        echo $thumb;

尝试获取自定义帖子类型“slidertype”的缩略图以显示在页面的元框中。现在它显示的数字对我来说毫无意义。没有建议就是不好的建议伙计们！谢谢

$thumb = get_post_meta($p,"_thumbnail_id",true);
$image = wp_get_attachment_image_src($thumb);
echo $image[0];

foreach( $posts as $p ){
    echo get_the_post_thumbnail( $p->ID, \'thumbnail\' );
}

foreach( $posts as $p ){
    setup_postdata( $p );
    the_post_thumbnail( \'large\' );
}
wp_reset_postdata();