我正在尝试显示后期视图计数。

我已经尝试了下面的函数来显示后期视图计数，但我得到的所有循环中的后期视图都是相同的。无法获取正确的后期视图计数。

Function:

       <?php
          // function to display number of posts.
           function getPostViews($postID){
           $count_key = \'post_views_count\';
                $count = get_post_meta($postID, $count_key, true);
              if($count==\'\'){
          delete_post_meta($postID, $count_key);
                     add_post_meta($postID, $count_key, \'0\');
                    return "0 View";
            }
            return $count.\' Views\';
      }             

          // function to count views.
       function setPostViews($postID) {
      $count_key = \'post_views_count\';
          $count = get_post_meta($postID, $count_key, true);
     if($count==\'\'){
                 $count = 0;
     delete_post_meta($postID, $count_key);
               add_post_meta($postID, $count_key, \'0\');
          }else{
     $count++;
                   update_post_meta($postID, $count_key, $count);
               }
             }


          // Add it to a column in WP-Admin
     add_filter(\'manage_posts_columns\', \'posts_column_views\');
       add_action(\'manage_posts_custom_column\', \'posts_custom_column_views\',5,2);
     function posts_column_views($defaults){
      $defaults[\'post_views\'] = __(\'Views\');
     return $defaults; 
        }
       function posts_custom_column_views($column_name, $id){
if($column_name === \'post_views\'){
    echo getPostViews(get_the_ID());
      }
       }
     ?>

Loop Code:

   <ul>
      <?php $the_query = new WP_Query( \'showposts=5\' ); ?>

        <?php while ($the_query -> have_posts()) : $the_query -> the_post(); ?>
      <li><a href="<?php the_permalink() ?>"><?php the_title(); ?></a>

       <?php echo getPostViews(get_the_ID()); ?>  //post View COde

  <?php echo substr(strip_tags($post->post_content), 0, 250);?></li>

      <?php endwhile;?>
  </ul>