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

Posted 2020-09-26 织梦58

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：

01 function ReplaceKeyword($kw,&$body) 02     { 03         global $cfg_cmspath; 04         $maxkey = 5; 05         $kws = explode(",",trim($kw));    //以分好为间隔符 06         $i=0; 07         $karr = $kaarr = $GLOBALS[‘replaced‘] = array(); 08   09         //暂时屏蔽超链接 10         $body = preg_replace("#(<a(.*))(>)(.*)(<)(\/a>)#isU", ‘\\1-]-\\4-[-\\6‘, $body); 11   12         /* 13         foreach($kws as $k) 14         { 15             $k = trim($k); 16             if($k!="") 17             { 18                 if($i > $maxkey) 19                 { 20                     break; 21                 } 22                 $myrow = $this->dsql->GetOne("SELECT * FROM #【分隔符】@__keywords WHERE keyword=‘$k‘ AND rpurl<>‘‘ "); 23                 if(is_array($myrow)) 24                 { 25                     $karr[] = $k; 26                     $GLOBALS[‘replaced‘][$k] = 0; 27                     $kaarr[] = "<a href=‘{$myrow[‘rpurl‘]}‘><u>$k</u></a>"; 28                 } 29                 $i++; 30             } 31         } 32         */ 33         $query = "SELECT * FROM #【分隔符】@__keywords WHERE rpurl<>‘‘ ORDER BY rank DESC"; 34         $this->dsql->SetQuery($query); 35         $this->dsql->Execute(); 36         while($row = $this->dsql->GetArray()) 37         { 38             $key = trim($row[‘keyword‘]); 39             $key_url=trim($row[‘rpurl‘]); 40             $karr[] = $key; 41             $kaarr[] = "<a href=‘$key_url‘ target=‘_blank‘><u>$key</u></a>"; 42         } 43   44         // 这里可能会有错误 45         $body = @preg_replace("#(^|>)([^<]+)(?=<|$)#sUe","_highlight(‘\\2‘, \$karr, \$kaarr, ‘\\1‘)", $body); 46   47         //恢复超链接 48         $body = preg_replace("#(<a(.*))-\]-(.*)-\[-(\/a>)#isU",‘\\1>\\3<\\4‘, $body); 49         return $body; 50     }

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：

01     function ReplaceKeyword($kw,&$body) 02     { 03     global $cfg_cmspath,$dsql; 04     $maxkey = 5; 05     $kws = explode(",",trim($kw)); //以分好为间隔符 06     $i=0; 07     $karr = $kaarr = $GLOBALS[‘replaced‘] = array(); 08     //暂时屏蔽超链接 09     $body = preg_replace("/(<a(.*))(>)(.*)(<)(\/a>)/isU", ‘\\1-]-\\4-[-\\6‘, $body); 10     $query="SELECT * FROM #【分隔符】@__keywords WHERE rpurl<>‘‘ and sta=1 ORDER BY length(keyword)desc"; 11     $dsql->SetQuery($query); 12     $dsql->Execute(); 13     while($row = $dsql->GetArray()) 14     { 15     $key = trim($row[‘keyword‘]); 16     $key_url=trim($row[‘rpurl‘]); 17     $karr[] = $key; 18     $kaarr[] = "<u><a href=‘$key_url‘ target=‘_blank‘>$key</a></u>"; 19     } 20     foreach ($karr as $key => $word) 21     { 22     $body = preg_replace("/(^|>)([^<]+)(?=<|$)/sUe", "_highlight(‘\\2‘, \$karr[$key], \$kaarr[$key], 23   24   25 ‘\\1‘)", $body); 26     //echo $body."<br/>"; 27     //恢复超链接 28     $body = preg_replace("/(<a(.*))-\]-(.*)-\[-(\/a>)/isU", ‘\\1>\\3<\\4‘, $body);//暂时屏蔽超链接 29     $body = preg_replace("/(<a(.*))(>)(.*)(<)(\/a>)/isU", ‘\\1-]-\\4-[-\\6‘, $body); 30     } 31     //恢复超链接 32     $body = preg_replace("/(<a(.*))-\]-(.*)-\[-(\/a>)/isU", ‘\\1>\\3<\\4‘, $body); 33   34   35     return $body; 36     } 37     } 38     //End Archives 39     //高亮专用, 替换多次是可能不能达到最多次 40     function _highlight($string, $words, $result, $pre) 41     { 42     global $cfg_replace_num; 43     $string = str_replace(‘\"‘, ‘"‘, $string); 44 if($GLOBALS[‘replaced‘][$words] == 1){ 45     return $pre.$string; 46     } 47 if($cfg_replace_num > 0){ 48     $string = preg_replace("/".preg_quote($words)."/", $result, $string, $cfg_replace_num); 49     if(strpos($string, $words) !== false) 50     { 51         $GLOBALS[‘replaced‘][$words] = 1; 52         } 53         } 54 else{$string = str_replace($words, $result, $string); 55 } 56 return $pre.$string; 57 }

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）