本文教大家：dedecms文档关键词维护之关键词出现多次，只给出现的第一个加链接的
举例：当文章中出现了一百次台历时，按官方的原理，他会给一百个台历都加上链接的。这如何是好？
解决方法（记得先备份）
一、打开目录include中的arc.archivew.class.php
找到function ReplaceKeyword($kw,&$body)代码，在最下面。然后一直到最下面。替换以下的代码
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);
global $dsql;
$query="SELECT * FROM zmb_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;
//echo $words;
}
}
else
{
$string = str_replace($words, $result, $string);
}
return $pre.$string;
}
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二、进入DEDE后台，系统-系统基本参数-其他选项的最后一行。文档内容同一关键词替换次数(0为全部替换)，修改为1。
