concrete5自定义块未将数组传递到视图

我有一个用concrete5制作的自定义块，它从数据库中获取所有工人的数组，并将其传递到视图中。这个块还使用了一个参数，该参数是在将块添加到页面中时给定的（它是WHERE sql语句的一部分，即parent_id=261）以下是我在块控制器中的函数：

public function view() 
{
    $db = new mysqli(WP_SERVER, WP_USERNAME, WP_PASSWORD, WP_DATABASE);
    if($db->connect_errno > 0)
    {
        echo '<!-- Unable to connect to database [' . $db->connect_error . '] -->';
    } 
    else 
    {
      $SQL_ENTRIES = "SELECT * FROM `wp_posts` WHERE post_type = 'page' AND ".$query." order by replace(post_title,'£','LZ') asc";
      if(!$entries_result = $db->query($SQL_ENTRIES))
      {
        echo '<!-- There was an error running the query [' . $db->error . '] -->';
      } 
      else 
      {
          $entries = array();
          while($row = $entries_result->fetch_assoc()) $entries[] = $row;
          $SQL_META = "SELECT post_id, meta_key, meta_value FROM wp_postmeta WHERE post_id IN (SELECT ID FROM `wp_posts` WHERE post_type = 'page' AND ".$query.")";
        if(!$meta_result = $db->query($SQL_META)) 
        {
          echo '<!-- There was an error running the query [' . $db->error . '] -->';
        } 
        else 
        {
          $metas = array();
          while($row = $meta_result->fetch_assoc()) 
          {
            if (!isset($metas[$row['post_id']])) $metas[$row['post_id']] = array ();
            $metas[$row['post_id']][] = $row;
          }
          $updated_entries = array ();
          foreach ($entries as $entry) 
          {
            if (isset($metas[$entry['ID']])) 
            {
              foreach ($metas[$entry['ID']] as $meta) 
              {
                $entry[$meta['meta_key']] = $meta['meta_value'];
              }
            } 
            $updated_entries[] = $entry;
          }
          $this->set('updated_entries', $updated_entries);
        }
      }       
    }       
}

在我的视图文件中：

$get = $updated_entries;
echo json_encode($get);

它没有列出任何内容，这很奇怪，因为当函数被放置在视图文件中时，它会正常地列出所有内容。有什么帮助吗？