Question

我在主页上显示帖子类别。我能够明智地打印帖子类别，但我想在每个类别中将帖子限制为5如何做到：

这是我的代码：

 $querystr = "SELECT * from wp_posts as wp INNER JOIN wp_term_relationships as wtr on wtr.object_id=wp.ID INNER JOIN wp_terms as wt on wtr.term_taxonomy_id=wt.term_id where wt.term_id IN (8,16,17) order by wt.term_id, wp.ID DESC
         ";

         $pageposts = $wpdb->get_results($querystr);
        $tem=""; 
         if ($pageposts): ?>
          <?php global $post; ?>
          <?php foreach ($pageposts as $post): ?>
            <?php setup_postdata($post); $b=$post->name;
                if($tem !=$b){
                $tem=$b;
                ?>
            <h3 style="border-bottom:2px solid #3b8b98;" ><span style="background:#3b8b98;width:30%;"><?php echo $tem;?></span></h3>
            <div class="post" id="post-<?php the_ID(); ?>">
             <a href="<?php the_permalink() ?>" rel="bookmark" title="Permanent Link to <?php the_title_attribute(); ?>">
               <i class="fas fa-hand-point-right"></i>&nbsp;<?php the_title(); ?></a>



            </div>
            <?php } else {?>

                <div class="post" id="post-<?php the_ID(); ?>">
             <a href="<?php the_permalink() ?>" rel="bookmark" title="Permanent Link to <?php the_title_attribute(); ?>">
              <i class="fas fa-hand-point-right"></i>&nbsp;<?php the_title(); ?></a>



            </div>
            <?php
            } endforeach; ?>

Answer 1

您可以使用WP_Query wordpress函数来获得所需的结果。 https://codex.wordpress.org/Class_Reference/WP_Query

$query = new WP_Query( array( 'cat' => 4, 'posts_per_page' => 5 ) );

根据您的要求在上面的示例中添加参数。

Answer 2

将SQL查询改为：

SELECT * from wp_posts as wp INNER JOIN wp_term_relationships as wtr on wtr.object_id=wp.ID INNER JOIN wp_terms as wt on wtr.term_taxonomy_id=wt.term_id where wt.term_id IN (8,16,17) order by wt.term_id, wp.ID DESC LIMIT 0,5

我已将LIMIT 0,5添加到最后，只检索了五个结果。

在wordpress主页上显示每个类别的五个帖子

2 个答案: