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>)#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[] = "$k";
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}
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$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[] = "$key";
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}
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// 这里可能会有错误
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$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("#()#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)
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{
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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>)/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[] = "$key";
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}
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foreach ($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 $body."
";
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//恢复超链接
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$body = preg_replace("/()/isU", '\\1>\\3<\\4', $body);//暂时屏蔽超链接
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$body = preg_replace("/()(.*)(<)(\/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("/()/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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