如何显示相关帖子缩略图？这是我使用的代码：
function related_posts_shortcode( $atts ) {
extract(shortcode_atts(array(
\'limit\' => \'3\',
), $atts));
global $wpdb, $post, $table_prefix;
if ($post->ID) {
$retval = \'<div class="related-posts-inline"><p class="related-title-inline">BACA JUGA</p><ul class="related-list-inline">\';
// Get tags
$tags = wp_get_post_tags($post->ID);
$tagsarray = array();
foreach ($tags as $tag) {
$tagsarray[] = $tag->term_id;
}
$tagslist = implode(\',\', $tagsarray);
// Do the query
$q = "SELECT p.*, count(tr.object_id) as count
FROM $wpdb->term_taxonomy AS tt, $wpdb->term_relationships AS tr, $wpdb->posts AS p WHERE tt.taxonomy =\'post_tag\' AND tt.term_taxonomy_id = tr.term_taxonomy_id AND tr.object_id = p.ID AND tt.term_id IN ($tagslist) AND p.ID != $post->ID
AND p.post_status = \'publish\'
AND p.post_date_gmt < NOW()
GROUP BY tr.object_id
ORDER BY count DESC, p.post_date_gmt DESC
LIMIT $limit;";
$related = $wpdb->get_results($q);
if ( $related ) {
foreach($related as $r) {
$retval .= \'
<li><a class="link-related" href="\'.get_permalink($r->ID).\'" title="\'.wptexturize($r->post_title).\'">\'.wptexturize($r->post_title).\'</a></li>\';
}
} else {
$retval .= \'
<li>No related posts found</li>\';
}
$retval .= \'</ul></div>\';
return $retval;
}
return;}
add_shortcode(\'related_posts\', \'related_posts_shortcode\');
SO网友:Chinmoy Kumar Paul
我正在通过获取帖子ID的get\\u post\\u thumbnail\\u ID函数获取附件ID。获取该帖子的附件ID后，我将此附件ID传递给wp_get_attachment_image_src 函数并获取图像详细信息。
所以我这样重写你的foreach循环
foreach($related as $r) {
$thumbnail = wp_get_attachment_image_src( get_post_thumbnail_id($r->ID), \'thumbnail\', true );
$img= \'\';
if( is_array( $thumbnail ) ) {
$img = sprintf(\'<img src="%s" width="%s" height="%s" alt="%s"> \', $thumbnail[0], $thumbnail[1], $thumbnail[2], $r->post_title);
}
$retval .= \'<li><a class="link-related" href="\'.get_permalink($r->ID).\'" title="\'.wptexturize($r->post_title).\'">\'. $img . wptexturize($r->post_title).\'</a></li>\';
}
