参数错误.
<div class='section_list'>
<div class='sep5'></div>
<table cellpadding='0' cellspacing='0' border='0' width='100%'>
    <tbody>
    <tr>
    <td>
        <a class='btn btn-default' href='https://wanweiku.com/ua3.php?u=' disabled role='button'>主题</a>
        <a class='btn btn-default' href='https://wanweiku.com/ua4.php?u='  role='button'>评论</a>
        <a class='btn btn-default' href='https://wanweiku.com/ua7.php?u='  role='button'>收藏</a>
        <a class='btn btn-default' href='https://wanweiku.com/ua5.php?u='  role='button'>赞</a>
        <a class='btn btn-default' href='https://wanweiku.com/ua6.php?u='  role='button'>踩</a>
        <a class='btn btn-default' href='https://wanweiku.com/uap.php?u=' role='button'>个人资料</a>
    </td>
    <td align='right'>
        <a class='btn btn-default' href='https://wanweiku.com/amsg.php?u=' role='button'>发送消息给</a>
    </td>
    </tr>
    </tbody>
</table>
<div class='sep10'></div>
</div>

<div class='section_list'>
<script async src="https://pagead2.googlesyndication.com/pagead/js/adsbygoogle.js?client=ca-pub-2800860450586817"
     crossorigin="anonymous"></script>
<!-- show-horizontal-01 -->
<ins class="adsbygoogle"
     style="display:block"
     data-ad-client="ca-pub-2800860450586817"
     data-ad-slot="7571424831"
     data-ad-format="auto"
     data-full-width-responsive="true"></ins>
<script>
     (adsbygoogle = window.adsbygoogle || []).push({});
</script></div>

<br />
<b>Fatal error</b>:  Uncaught Error: Call to a member function fetch_assoc() on boolean in /www/wwwroot/wanweiku.com/ua3.php:46
Stack trace:
#0 {main}
  thrown in <b>/www/wwwroot/wanweiku.com/ua3.php</b> on line <b>46</b><br />