dedecms关键词维护里面字数多的词优先字数少的词-巨人网络

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dedecms关键词维护里面字数多的词优先字数少的词

POST TIME:2017-10-26 19:57

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：

function ReplaceKeyword($kw,&$body)
    {
        global $cfg_cmspath;
        $maxkey = 5;
        $kws = explode(",",trim($kw));    //以分好为间隔符
        $i=0;
        $karr = $kaarr = $GLOBALS['replaced'] = array();

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

        /*
        foreach($kws as $k)
        {
            $k = trim($k);
            if($k!="")
            {
                if($i > $maxkey)
                {
                    break;
                }
                $myrow = $this->dsql->GetOne("SELECT * FROM #【分隔符】@__keywords WHERE keyword='$k' AND rpurl<>'' ");
                if(is_array($myrow))
                {
                    $karr[] = $k;
                    $GLOBALS['replaced'][$k] = 0;
                    $kaarr[] = "<a href='{$myrow['rpurl']}'><u>$k</u></a>";
                }
                $i++;
            }
        }
        */
        $query = "SELECT * FROM #【分隔符】@__keywords WHERE rpurl<>'' ORDER BY rank DESC";
        $this->dsql->SetQuery($query);
        $this->dsql->Execute();
        while($row = $this->dsql->GetArray())
        {
            $key = trim($row['keyword']);
            $key_url=trim($row['rpurl']);
            $karr[] = $key;
            $kaarr[] = "<a href='$key_url' target='_blank'><u>$key</u></a>";
        }

        // 这里可能会有错误
        $body = @preg_replace("#(^|>)([^<]+)(?=<|$)#sUe", "_highlight('\\2', \$karr, \$kaarr, '\\1')", $body);

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

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：

    function ReplaceKeyword($kw,&$body)
    {
    global $cfg_cmspath,$dsql;
    $maxkey = 5;
    $kws = explode(",",trim($kw)); //以分好为间隔符
    $i=0;
    $karr = $kaarr = $GLOBALS['replaced'] = array();
    //暂时屏蔽超链接
    $body = preg_replace("/(<a(.*))(>)(.*)(<)(\/a>)/isU", '\\1-]-\\4-[-\\6', $body);
    $query="SELECT * FROM #【分隔符】@__keywords WHERE rpurl<>'' and sta=1 ORDER BY length(keyword)desc";
    $dsql->SetQuery($query);
    $dsql->Execute();
    while($row = $dsql->GetArray())
    {
    $key = trim($row['keyword']);
    $key_url=trim($row['rpurl']);
    $karr[] = $key;
    $kaarr[] = "<u><a href='$key_url' target='_blank'>$key</a></u>";
    }
    foreach ($karr as $key => $word)
    {
    $body = preg_replace("/(^|>)([^<]+)(?=<|$)/sUe", "_highlight('\\2', \$karr[$key], \$kaarr[$key],


'\\1')", $body);
    //echo $body."<br/>";
    //恢复超链接
    $body = preg_replace("/(<a(.*))-\]-(.*)-\[-(\/a>)/isU", '\\1>\\3<\\4', $body);//暂时屏蔽超链接
    $body = preg_replace("/(<a(.*))(>)(.*)(<)(\/a>)/isU", '\\1-]-\\4-[-\\6', $body);
    }
    //恢复超链接
    $body = preg_replace("/(<a(.*))-\]-(.*)-\[-(\/a>)/isU", '\\1>\\3<\\4', $body);


    return $body;
    }
    }
    //End Archives
    //高亮专用, 替换多次是可能不能达到最多次
    function _highlight($string, $words, $result, $pre)
    {
    global $cfg_replace_num;
    $string = str_replace('\"', '"', $string);
if($GLOBALS['replaced'][$words] == 1){
    return $pre.$string;
    }
if($cfg_replace_num > 0){
    $string = preg_replace("/".preg_quote($words)."/", $result, $string, $cfg_replace_num);
    if(strpos($string, $words) !== false)
    {
        $GLOBALS['replaced'][$words] = 1;
        }
        }
else{$string = str_replace($words, $result, $string);
}
return $pre.$string;
}

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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