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：

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。