php5.5之上dedecms重要词內链没法应用及重要词长度

2021-02-11 05:48

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例如有 济南市企业网站建设 、 济南市企业网站建设企业 、 济南市营销推广型企业网站建设 ，同时在一一篇文章抽出现，程序会优先选择应用短的词。       处理重要词长度优先选择级难题的方式   开启 /include/arc.archives.class.php 寻找   $query = SELECT * FROM dede_keywords WHERE rpurl ORDER BY rank DESC     $query = SELECT char_length(keyword) AS num,aid,keyword,rpurl,rank FROM dede_keywords WHERE rpurl ORDER BY num DESC       再次寻找   # .preg_quote($word). #     #(? ! )(?! ) .preg_quote($word). #         PHP版本号高过5.5没法应用重要词內链的处理方式   开启 /include/arc.archives.class.php 寻找   $body = @preg_replace_callback( #(^| )([^ ]+)(?= |$)#sU , _highlight(  , $karr, $kaarr,
) , $body);     global $cfg_replace_num; if($cfg_replace_num 0) $query = SELECT char_length(keyword) AS num,aid,keyword,rpurl,rank FROM dede_keywords WHERE rpurl ORDER BY num DESC $this- dsql- SetQuery($query); $this- dsql- Execute(); while($row = $this- dsql- GetArray()) $key = trim($row[ keyword $key_url=trim($row[ rpurl $body = str_replace_limit($key, a href= $key_url target= _blank u $key /u /a , $body, $cfg_replace_num); else $query = SELECT char_length(keyword) AS num,aid,keyword,rpurl,rank FROM dede_keywords WHERE rpurl ORDER BY num DESC $this- dsql- SetQuery($query); $this- dsql- Execute(); while($row = $this- dsql- GetArray()) $key = trim($row[ keyword $key_url=trim($row[ rpurl $body = str_replace($key, a href= $key_url target= _blank u $key /u /a , $body); 再次寻找   //高亮度专用型   在它上边添加   //特定更换频次作用 function str_replace_limit($search, $replace, $subject, $limit) if(is_array($search)) foreach($search as $k= $v) $search[$k] = #(? ! )(?! ) . preg_quote($search[$k], # ). # else $search = #(? ! )(?! ) . preg_quote($search, # ). # return preg_replace($search, $replace, $subject, $limit);