01  

08    function ReplaceKeyword($kw,&$body)

09    {

10        global $cfg_cmspath;

11        $maxkey = 5;

12        $kws = explode(",",trim($kw));    //以分好为间隔符

13        $i=0;

14        $karr = $kaarr = $GLOBALS['replaced'] = array();

15 

16        //暂时屏蔽超链接

17        $body = preg_replace("#(<a(.*))(>)(.*)(<)(/a>)#isU", '\1-]-\4-[-\6', $body);

18 

19        // $query = "SELECT * FROM keywords WHERE rpurl<>'' ORDER BY rank DESC"; // 原版的

20$query="SELECT * FROM `keywords` WHERE rpurl<>'' and sta=1 ORDER BY length(keyword) DESC"; // 修改 优先处理长关键词

21        $this->dsql->SetQuery($query);

22        $this->dsql->Execute();

23        while($row = $this->dsql->GetArray())

24        {

25            $key = trim($row['keyword']);

26            $key_url=trim($row['rpurl']);

27            $karr[] = $key;

28            $kaarr[] = "<a class='title-prefix' href='$key_url' target='_blank'>$key</a>"; // 删除 <u> 和 </u> ，增加class属性

29        }

30 

31        // 这里可能会有错误

32        // $body = @preg_replace("#(^|>)([^<]+)(?=<|$)#sUe", "_highlight('\2', $karr, $kaarr, '\1')", $body);

33 

34foreach ($karr as $key => $word)

35{ 

36$body = preg_replace("/(^|>)([^<]+)(?=<|$)/sUe", "_highlight('\2', $karr[$key], $kaarr[$key], '\1')", $body); 

37//echo $body."<br/>"; 

38//恢复超链接 

39$body = preg_replace("/(<a(.*))-]-(.*)-[-(/a>)/isU", '\1>\3<\4', $body); 

40//暂时屏蔽超链接 

41$body = preg_replace("/(<a(.*))(>)(.*)(<)(/a>)/isU", '\1-]-\4-[-\6', $body); 

42}

43 

44        //恢复超链接

45        $body = preg_replace("#(<a(.*))-]-(.*)-[-(/a>)#isU", '\1>\3<\4', $body);

46        return $body;

47    }