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