妍熙饭

foreach ($post_tags as $tag)
{
// 获取标签列表
$tag_list[] .= $tag->term_id;
}

// 随机获取标签列表中的一个标签
$post_tag = $tag_list[ mt_rand(0, count($tag_list) - 1) ];

// 该方法使用 query_posts() 函数来调用相关文章，以下是参数列表
$args = array(
'tag__in' => array($post_tag),
'category__not_in' => array(NULL), // 不包括的分类ID
'post__not_in' => array($post->ID),
'showposts' => 6, // 显示相关文章数量
'caller_get_posts' => 1
);
query_posts($args);

if (have_posts()) :
while (have_posts()) : the_post(); update_post_caches($posts); ?>

if (have_posts()) :
while (have_posts()) : the_post(); update_post_caches($posts); ?>

$related_posts = $wpdb->get_results("
SELECT post_title, ID
FROM {$wpdb->prefix}posts, {$wpdb->prefix}term_relationships, {$wpdb->prefix}term_taxonomy
WHERE {$wpdb->prefix}term_taxonomy.term_taxonomy_id = {$wpdb->prefix}term_relationships.term_taxonomy_id
AND ID = object_id
AND taxonomy = 'post_tag'
AND post_status = 'publish'
AND post_type = 'post'
AND term_id IN (" . $tag_list . ")
AND ID != '" . $post->ID . "'
ORDER BY RAND()
LIMIT 6");
// 以上代码中的 6 为限制只获取6篇相关文章
// 通过修改数字 6，可修改你想要的文章数量

if ( $related_posts ) {
foreach ($related_posts as $related_post) {
?>

$related = $wpdb->get_results("
SELECT post_title, ID
FROM {$wpdb->prefix}posts, {$wpdb->prefix}term_relationships, {$wpdb->prefix}term_taxonomy
WHERE {$wpdb->prefix}posts.ID = {$wpdb->prefix}term_relationships.object_id
AND {$wpdb->prefix}term_taxonomy.taxonomy = 'category'
AND {$wpdb->prefix}term_taxonomy.term_taxonomy_id = {$wpdb->prefix}term_relationships.term_taxonomy_id
AND {$wpdb->prefix}posts.post_status = 'publish'
AND {$wpdb->prefix}posts.post_type = 'post'
AND {$wpdb->prefix}term_taxonomy.term_id = '" . $cats[0] . "'
AND {$wpdb->prefix}posts.ID != '" . $post->ID . "'
ORDER BY RAND( )
LIMIT 6");

if ( $related ) {
foreach ($related as $related_post) {
?>

if (have_posts()) :
while (have_posts()) : the_post(); update_post_caches($posts); ?>