织梦内链失效（文档要害词维护）解决措施

当PHP版本高于5.5时，织梦DedeCMS无法使用要害词內链，下面是此问题的解决要领。

打开 /include/arc.archives.class.php 找到

$body = @preg_replace_callback(“#(^|>)([^<]+)(?=<|$)#sU”, “_highlight(‘\\2’, \$karr, \$kaarr, ‘\\1’)”, $body);

改成：

global $cfg_replace_num;if($cfg_replace_num > 0){$query = “SELECT char_length(keyword) AS num,aid,keyword,rpurl,rank FROM xiuzhanwang_keywords WHERE rpurl<>” ORDER BY num DESC”;$this->dsql->SetQuery($query);$this->dsql->Execute();while($row = $this->dsql->GetArray()){$key = trim($row[‘keyword’]);https://www.xiuzhanwang.com/dedecms_jq/$key_url=trim($row[‘rpurl’]);$body = str_replace_limit($key, “$key”, $body, $cfg_replace_num);}}else{$query = “SELECT char_length(keyword) AS num,aid,keyword,rpurl,rank FROM xiuzhanwang_keywords WHERE rpurl<>” ORDER BY num DESC”;$this->dsql->SetQuery($query);$this->dsql->Execute();while($row = $this->dsql->GetArray()){$key = trim($row[‘keyword’]);https://www.xiuzhanwang.com/dedecms_jq/$key_url=trim($row[‘rpurl’]);$body = str_replace($key, “$key”, $body);}}

继续找到：

//高亮专用, 替换多次是可能不能到达最多次

在它上面加入：

//指定替换次数功效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);}