百度分享无法抓取图片及摘要的折中解决办法

<!-- Baidu Button BEGIN -->
<div id="bdshare" class="bdshare_t bds_tools get-codes-bdshare">
<a class="bds_qzone"></a>
<a class="bds_tsina"></a>
<a class="bds_tqq"></a>
<a class="bds_renren"></a>
<span class="bds_more">更多</span>
</div>
<script type="text/javascript" id="bdshare_js" data="type=tools&mini=1" ></script>
<script type="text/javascript" id="bdshell_js"></script>
<script type="text/javascript">
/**
* 在这里定义bds_config
*/
var bds_config = {
'bdDes':'您的自定义分享摘要', //'请参考自定义分享摘要'
'bdText':'您的自定义分享内容', //'请参考自定义分享内容'
'bdPopTitle':'您的自定义pop窗口标题', //'请参考自定义pop窗口标题'
'bdTop':'您的自定义侧栏高度', //'请参考自定义侧栏高度'
'bdComment':'您的自定义分享评论', //'请参考自定义分享评论'
'bdPic':'您的自定义分享出去的图片', //'请参考自定义分享出去的图片'
'searchPic':'是否自动抓取页面图片',//'0为抓取，1为不抓取，默认为0，目前只针对新浪微博'
'wbUid':'您的自定义微博 ID', //'请参考自定义微博 id'
'render':false, //'请参考自定义分享回流量统计'
'review':'normal', //'请参考自定义分享回流签名'
'snsKey':{'tsina':'appkey'} //'请参考自定义分享到平台的appkey'
}
document.getElementById('bdshell_js').src = "http://bdimg.share.baidu.com/static/js/shell_v2.js?cdnversion=" + Math.ceil(new Date()/3600000);
</script>
<!-- Baidu Button END -->

/*特色图片*/
function get_post_thumbnail_url($post_id){
$post_id = ( null === $post_id ) ? get_the_ID() : $post_id;
$thumbnail_id = get_post_thumbnail_id($post->ID);
if($thumbnail_id ){
$thumb = wp_get_attachment_image_src($thumbnail_id, 'thumbnail');
return $thumb[0];
   }else{
return false;
  }
}

<!--获取文章摘要(新增)-->
<?php
if (!function_exists('utf8Substr')) {
function utf8Substr($str, $from, $len)
{
return preg_replace('#^(?:[\x00-\x7F]|[\xC0-\xFF][\x80-\xBF]+){0,'.$from.'}'.
'((?:[\x00-\x7F]|[\xC0-\xFF][\x80-\xBF]+){0,'.$len.'}).*#s',
'$1',$str);
    }
}
if ( is_single() ){
if ($post->post_excerpt) {
$description = $post->post_excerpt;
     } else {
if(preg_match('/<p>(.*)<\/p>/iU',trim(strip_tags($post->post_content,"<p>")),$result)){
$post_content = $result['1'];
   } else {
$post_content_r = explode("\n",trim(strip_tags($post->post_content)));
$post_content = $post_content_r['0'];
       }
$description = utf8Substr($post_content,0,200);
   }
}
?>
<!--百度分享(修改)-->
<div data="{'url':'<?php the_permalink()?>','pic':'<?php echo get_post_thumbnail_url($post->ID); ?>','text':'分享@张戈博客 的文章「<?php the_title(); ?>」:<?php echo trim($description); ?>...'}" class="bdshare_t bds_tools get-codes-bdshare stb_share_buttons stb_group" id="bdshare">

<script type="text/javascript">
document.getElementById("bdshell_js").src = "http://bdimg.share.baidu.com/static/js/shell_v2.js?cdnversion=" + new Date().getHours();
</script>

<!--获取文章摘要(新增)-->
<?php
if (!function_exists('utf8Substr')) {
   function utf8Substr($str, $from, $len)
   {
     return preg_replace('#^(?:[\x00-\x7F]|[\xC0-\xFF][\x80-\xBF]+){0,'.$from.'}'.
'((?:[\x00-\x7F]|[\xC0-\xFF][\x80-\xBF]+){0,'.$len.'}).*#s',
'$1',$str);
    }
}
if ( is_single() ){
   if ($post->post_excerpt) {
      $description = $post->post_excerpt;
     } else {
     if(preg_match('/<p>(.*)<\/p>/iU',trim(strip_tags($post->post_content,"<p>")),$result)){
      $post_content = $result['1'];
     } else {
      $post_content_r = explode("\n",trim(strip_tags($post->post_content)));
      $post_content = $post_content_r['0'];
       }
$description = utf8Substr($post_content,0,200);
    }
}
?>
<!--百度分享javascript-->
<script type="text/javascript">
var bds_config = {
'bdPic':'<?php echo get_post_thumbnail_url($post->ID); ?>',
'pic':'<?php echo get_post_thumbnail_url($post->ID); ?>',
'text':'分享@张戈博客 的文章「<?php the_title(); ?>」:<?php echo trim($description); ?>...'
}
document.getElementById('bdshell_js').src = "http://share.baidu.com/static/js/shell_v2.js?cdnversion=" + Math.ceil(new Date()/3600000);
</script>