dedecms关键词维护里面字数多的词优先字数少的词的解决办法

织梦后台的关键词维护默认的情况是字数少的词优先于字数多的词，比如我们有两个这样的词：创业、创业方向，第二个词包含了第一个词，在文章中如果出现“创业方向”这个词，默认情况下只会给创业两个字添加关键词超链接，而不是整个词，那么我们怎么样才能实现字数多的词优先于字数少的词呢？下面就告诉大家具体的解决方法：

我们找到并打开/include/arc.archives.class.php文件，在里面找到如下代码：

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function ReplaceKeyword($kw,&$body)

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    {

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        global $cfg_cmspath;

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        $maxkey = 5;

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

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        $i=0;

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

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        //暂时屏蔽超链接

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

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        /*

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        foreach($kws as $k)

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        {

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            $k = trim($k);

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            if($k!="")

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            {

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                if($i > $maxkey)

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                {

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                    break;

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                }

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                $myrow = $this->dsql->GetOne("SELECT * FROM #【分隔符】@__keywords WHERE keyword='$k' AND rpurl<>'' ");

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                if(is_array($myrow))

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                {

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                    $karr[] = $k;

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                    $GLOBALS['replaced'][$k] = 0;

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                    $kaarr[] = "<a href='{$myrow['rpurl']}'><u>$k</u></a>";

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                }

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                $i++;

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            }

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        }

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        */

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        $query = "SELECT * FROM #【分隔符】@__keywords WHERE rpurl<>'' ORDER BY rank DESC";

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

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        $this->dsql->Execute();

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

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        {

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

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

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            $karr[] = $key;

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            $kaarr[] = "<a href='$key_url' target='_blank'><u>$key</u></a>";

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        }

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        // 这里可能会有错误

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

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        //恢复超链接

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

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        return $body;

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    }

注意查找代码的时候先手动去掉代码里面的【分隔符】字样！

找到后将其替换为如下代码：

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    function ReplaceKeyword($kw,&$body)

02
    {

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    global $cfg_cmspath,$dsql;

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    $maxkey = 5;

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

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    $i=0;

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

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    //暂时屏蔽超链接

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

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    $query="SELECT * FROM #【分隔符】@__keywords WHERE rpurl<>'' and sta=1 ORDER BY length(keyword)desc";

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    $dsql->SetQuery($query);

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    $dsql->Execute();

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    while($row = $dsql->GetArray())

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    {

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    $key = trim($row['keyword']);

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    $key_url=trim($row['rpurl']);

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    $karr[] = $key;

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    $kaarr[] = "<u><a href='$key_url' target='_blank'>$key</a></u>";

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    }

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    foreach ($karr as $key => $word)

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    {

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

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'\1')", $body);

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    //echo $body."<br/>";

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    //恢复超链接

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    $body = preg_replace("/(<a(.*))-]-(.*)-[-(/a>)/isU", '\1>\3<\4', $body);//暂时屏蔽超链接

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

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    }

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    //恢复超链接

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

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    return $body;

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    }

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    }

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    //End Archives

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    //高亮专用, 替换多次是可能不能达到最多次

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    function _highlight($string, $words, $result, $pre)

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    {

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    global $cfg_replace_num;

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    $string = str_replace('"', '"', $string);

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if($GLOBALS['replaced'][$words] == 1){

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    return $pre.$string;

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    }

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if($cfg_replace_num > 0){

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    $string = preg_replace("/".preg_quote($words)."/", $result, $string, $cfg_replace_num);

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    if(strpos($string, $words) !== false)

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    {

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        $GLOBALS['replaced'][$words] = 1;

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        }

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        }

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else{$string = str_replace($words, $result, $string);

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}

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return $pre.$string;

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}

注意手动去掉代码里面的【分隔符】字样！

替换完成后保存即可，然后生成一下文章内容试试。

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转载自织梦模板教程（www.dede58.com）