给WordPress添加相关文章、随机文章、置顶文章等

测试成功，是通过TAG关键词调用相关文章，相关效果大家可以看本篇文章末尾的文章推荐，还是挺好用的
下面是代码，在文章模板添加的地方添加如下代码即可

通过tag调用相关文章代码

<?php
    $post_num = 10;
    global $post;
    $tmp_post = $post;
    $tags = ''; $i = 0;
    if ( get_the_tags( $post->ID ) ) {
    foreach ( get_the_tags( $post->ID ) as $tag ) $tags .= $tag->name . ',';
    $tags = strtr(rtrim($tags, ','), ' ', '-');
    $myposts =get_posts('numberposts='.$post_num.'&tag='.$tags.'&exclude='.$post->ID);
    foreach($myposts as $post) {
    setup_postdata($post);
    ?>
    <li><a href="<?php the_permalink(); ?>" title="<?php the_title(); ?>"><?php the_title(); ?></a></li>
    <?php
    }
    }
    $post = $tmp_post; setup_postdata($post);
    ?>

上面的数字是调用文章多少篇，现在代码上的显示10篇

调用随机文章代码

<?php
$args = array( 'numberposts' => 2, 'orderby' => 'rand', 'post_status' => 'publish' );
$rand_posts = get_posts( $args );
foreach( $rand_posts as $post ) : ?>
<li><a href="<?php the_permalink(); ?>" title="<?php the_title(); ?>"><?php the_title(); ?></a></li>
<?php endforeach; ?>

调用置顶文章开始

<?php
// 获取置顶文章代码
$sticky = get_option( 'sticky_posts' ); //获得所有置顶文章的id
$args = array(
    'numberposts' => 6, // 最多获取6篇置顶文章
    'post__in'  => $sticky
);
$postQuery = get_posts($args);
//循环输出置顶文章
foreach( $postQuery as $post ) : setup_postdata($post);
    ?>
<li><a href="<?php the_permalink(); ?>" title="<?php the_title(); ?>"><?php the_title(); ?></a></li>
    <?php
    if ( has_post_thumbnail() ) {
        the_post_thumbnail();
    }
endforeach;
?>

随机调用同分类文章

<!-- 调用随机同类文章 --> 
<?php
    $cat = get_the_category();
    foreach($cat as $key=>$category){
        $catid = $category->term_id;
    }
    $args = array('orderby' => 'rand','showposts' => 2,'cat' => $catid );
    $query_posts = new WP_Query();
    $query_posts->query($args);
    while ($query_posts->have_posts()) : $query_posts->the_post();
    ?>
<li><a href="<?php the_permalink(); ?>" title="<?php the_title(); ?>"><?php the_title(); ?></a></li>
    <?php endwhile;?>
    <?php wp_reset_query(); ?>
<!-- 调用随机同类文章结束 -->