wordpress相关文章的优化机智和自定义设置

2019年12月15日01:22:28 发表评论热度533 ℃

之前大叔介绍过 wordpress相关文章实现的方法，例：《代码实现WordPress相关文章》，那么今天说的这个教程，是从优化角度来更合理的实现wordpress相关文章的，至于客观喜欢哪个，自己决定吧！

策略：文章内容相关程度：手动指定 > 标签 >分类 > 随机

wordpress相关文章的优化机智和自定义设置

实现方式：下面代码直接加到functions.php中即可

function add_related_posts($content){
return $content . wp_related_posts();
}
add_filter ('the_content', 'add_related_posts'); //hook
function wp_related_posts(){
global $post;
$num = 5;//文章数量
$counter = 1;
$exclude_id = get_post_meta($post->ID,'related',true);//获取手动置顶的相关文章
if ($exclude_id){
$args = array(
'post_status' => 'publish',
'post_type' => array('post'),
'post__in' => explode(',', $exclude_id),
'posts_per_page' => $num
);
$posts = get_posts($args);
foreach($posts as $sb){
$output .= '<li><a href="' . get_permalink($sb->ID) . '">' . $sb->post_title . '</a></li>';//可自定义样式
$i++;
}
}
if( $i < $num){//自定义文章数不足后通过分类和标签处理
$tagsid = array();
$catid = array();
$thisid[] = $post->ID;
$posttags = get_the_tags();
$catids = get_the_category();
if(!emptyempty($posttags)) {
foreach($posttags as $tag) {
$tagsid[] = $tag->term_id;
}
}
if(!emptyempty($catids)) {
foreach($catids as $cat) {
$catid[] = $cat->term_id;
}
}
$args = array(
'post_type' => 'post',
'post__not_in' => $thisid,
'ignore_sticky_posts' => 1,
'posts_per_page' => ($num - $i),
'tax_query' => array(
'relation' => 'OR',//改成AND则必须是同标签同分类下
array(
'taxonomy' => 'post_tag',
'field' => 'term_id',
'terms' => $tagsid,
),
array(
'taxonomy' => 'category',
'field' => 'term_id',
'terms' => $catid,
),
),
);
$rsp = get_posts($args );
foreach($rsp as $sb){
$output .= '<li><a href="' . get_permalink($sb->ID) . '">' . $sb->post_title . '</a></li>';//可自定义样式
$i++;
}
}
$final = '<h3>相关文章</h3><ul>' . $output . '</ul>';
return $final;
}