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

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。