织梦当前文档内容自动关联tag标签做内链

  function ReplaceKeyword($kw,&$body)  {  	...中间代码省略  }

  function ReplaceKeyword($kw,&$body)  {  	global $cfg_replace_num;  	//如果当前文档没有tag直接不内链，需要匹配所有tag的话，删除下面行  	if(GetTags($this->Fields['aid']) == '') return $body;  	$search = "/(alts*=s*|titles*=s*|srcs*=s*)["|'](.+?)["|']/is";  	$body = preg_replace_callback($search, array('Archives', '_base64_encode'), $body);  	$addsql = '';  	$this->dsql->SetQuery("SELECT tid FROM `58pic_taglist` WHERE aid = '{$this->Fields['aid']}' ");  	$this->dsql->Execute();  	$ids = '';  	while($row = $this->dsql->GetArray())  	{  		$ids .= ( $ids=='' ? $row['tid'] : ','.$row['tid'] );  	}  	if($ids != '')  	{  		$addsql = " WHERE id IN($ids) ";  	}  	$query = "SELECT * FROM `58pic_tagindex` $addsql ORDER BY addtime DESC";  	$this->dsql->SetQuery($query);  	$this->dsql->Execute();  	$linkdatas = array();  	while($row = $this->dsql->GetArray())  	{  		$row['keyword'] = $row['tag'];  		$row['rpurl'] = $cfg_cmsurl."/tags.php?/".urlencode($row['tag'])."/";  		$linkdatas[] = $row;  	}  	if($linkdatas) {  		$word = $replacement = array();  		foreach($linkdatas as $v) {  			$word0[] = "/<a[^>]*>{$v['keyword']}</a>/is";  			$word1[] = '/'.$v['keyword'].'/is';  			$word2[] = $v['keyword'];  			$replacement[] = '<a href="'.$v['rpurl'].'" target="_blank">'.$v['keyword'].'</a>';  		}  		if($cfg_replace_num) {  			$body = preg_replace($word0, $word2, $body, $cfg_replace_num);  			$body = preg_replace($word1, $replacement, $body, $cfg_replace_num);  		} else {  			$body = str_replace($word2, $replacement, $body);  		}  	}  	$body = preg_replace_callback($search, array('Archives', '_base64_decode'), $body);  	return $body;  }  function _base64_encode($matches) {  	return $matches[1].""".base64_encode($matches[2]).""";  }  function _base64_decode($matches) {  	return $matches[1].""".base64_decode($matches[2]).""";  }