怎样调用帖子摘要

在forumdisplay.php里加这段

if($forum['viewperm'] && !forumperm($forum['viewperm']) && !$forum['allowview']) {
        $thread['message'] = "谢谢您的访问！由于权限不够，您仅可浏览本版主题标题。";
    } elseif($thread['creditsrequire'] && $thread['creditsrequire'] > $credit && !$ismoderator) {
        include language('messages');
        eval("\$show_message = \"".$language[thread_nopermission]."\";");
        $thread['message'] =  $show_message;
    } else {
   
        if (strstr($thread['message'],'<') && strstr($thread['message'],'>')) {
$thread['message'] = preg_replace("/<(??:\/?[A-Za-z][^>=\s]*(?:[=\s](??!['\"])[\s\S]*?|'[^']*'|\"[^\"]*\"))*)|(?:!--[\s\S]*?--))>|\[(hide|sell|php|code|quote|url|img).*?\].+?\[\/\\1\]|\[\/?[a-z]{1,10}.{0,50}\]/is","",$thread['message']);}
$thread['message'] = str_replace(array('"','<','>'), array('"','&lt;','&gt;'), $thread['message']);

        }
        $thread['message'] = cutstr($thread['message'],268);        //内容截断
        $thread['message'] = nl2br(preg_replace("/(\r?\n)+/","\n",trim($thread['message'])));
        $thread['shortmsg'] = '<font color=black>'.preg_replace('/\[\/?[a-z]{1,10}.{0,10}\]/is','',$thread[message]).'</font>';


在forumdisplay.htm里加这段
$thread[shortmsg]

但是还是显示不了，谁会帮着改改啊

:) :) :) :)

:victory:

:'(

:call:

:@ :@

:@:@ :@:@ :@