Discuz相关标贴帖子封面图调用方法

程序目录source\module\forum\forum_viewthread.php
搜索$post['relateitem']

改为
if($post['tags']) {
   $post['relateitem'] = getrelateitem($post['tags'], $post['tid'], $_G['setting']['relatenum'], $_G['setting']['relatetime']);
   foreach($post['relateitem'] as $k=>$img) 
   { 
        $threada= C::t('forum_attachment')->fetch_all_by_id('tid', $img['tid'], 'aid');
	$threadaid = reset($threada);
	$threadpic = C::t('forum_attachment_n')->fetch_by_aid_uid($threadaid['tableid'], $threadaid['aid'], $thread['authorid']);
	$thread['pic'] = $threadpic['attachment'];  
	$post['relateitem'][$k]['img'] = 'data/attachment/forum/'.$thread['pic']; 
   }
}

模板目录\template\default\forum\viewthread_node.htm

<!--{if $post['relateitem']}-->
	<div class="mtw mbw">
		<h3 class="pbm mbm bbda">{lang related_thread}</h3>
		<ul class="xl xl2 cl">
			<!--{loop $post['relateitem'] $var}-->
			<li>&#8226; <a href="forum.php?mod=viewthread&tid=$var[tid]" title="$var[subject]" target="_blank">
			<img src="$var[img]" height="252" width="175" alt="$var[subject]" >$var[subject]</a>
			</li>
			<!--{/loop}-->
		</ul>
	</div>
<!--{/if}-->

调用标签 $var[img]