dedecms站内链接(描文本)的增强与优化

function ReplaceKeyword($kw,&$body)  
{  
global $cfg_cmspath;  
$maxkey = 5; //替换次数  
$kws = explode(”,”,trim($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>)/isU”, ‘\\1-]-\\4-[-\\6', $body);  
foreach($kws as $k)  
{  
$k = trim($k);  
if($k!="")  
{  
/* if($i > $maxkey)  
{  
break;  
}  
$myrow = $this->dsql->GetOne("select * from dede_keywords where keyword='$k' And rpurl<>'' ");  
if(is_array($myrow))*/  
$dsql = new DedeSql(false);  
$query="select * from dede_keywords where rpurl<>'' ";  
$dsql->SetQuery($query);  
$dsql->Execute();  
while($row = $dsql->GetArray())  
{  
$key = trim($row['keyword']);  
$rul=trim($row['rpurl']);  
if($rul!=”")  
if(!in_array($key, $kw))  
if(!in_array($kw,$key))  
if(substr_count($body,$key)<5)  
{  
$karr[] = $key;  
$kaarr[] = “<a href=’$rul’><u>$key</u></a>”;  
}  
}  
{  
$karr[] = $k;  
$GLOBALS['replaced'][$k] = 0;  
$kaarr[] = “<a target=\”_blank\” href=\”{$myrow['rpurl']}\”>$k</a>”;  
}  
$i++;  
}  
}  
$body = preg_replace(”/(^|>)([^<]+)(?=<|$)/sUe”, “_highlight(’\\2′, \$karr, \$kaarr, ‘\\1′)”, $body);  
//恢复超链接  
$body = preg_replace(”/()/isU”, ‘\\1>\\3<\\4′, $body);  
return $body;  
}  
}//End Archives