DeDecms教程

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', $body); 
/* 
foreach($kws as $k) 
{ 
                $k = trim($k); 
                if($k!="") 
                { 
                    if($i > $maxkey) 
                    { 
                        break; 
                    } 
                    $myrow = $this->dsql->GetOne("SELECT * FROM #【分隔符】@__keywords WHERE keyword='$k' AND rpurl<>'' "); 
                    if(is_array($myrow)) 
                    { 
                        $karr[] = $k; 
                        $GLOBALS['replaced'][$k] = 0; 
                        $kaarr[] = "<a href='{$myrow['rpurl']}'><u>$k</u></a>"; 
                    } 
                    $i++; 
                } 
            } 
            */ 
            $query = "SELECT * FROM #【分隔符】@__keywords WHERE rpurl<>'' ORDER BY rank DESC"; 
            $this->dsql->SetQuery($query); 
            $this->dsql->Execute(); 
            while($row = $this->dsql->GetArray()) 
            { 
                $key = trim($row['keyword']); 
                $key_url=trim($row['rpurl']); 
                $karr[] = $key; 
                $kaarr[] = "<a href='$key_url' target='_blank'><u>$key</u></a>"; 
            } 
            // 这里可能会有错误 
            $body = @preg_replace("#(^|>)([^<]+)(?=<|$)#sUe", "_highlight('\2', $karr, $kaarr, '\1')", $body); 
            //恢复超链接 
            $body = preg_replace("#(<a(.*))-]-(.*)-[-(/a>)#isU", '\1>\3<\4', $body); 
            return $body; 
        } 

 function ReplaceKeyword($kw,&$body) 
    { 
  global $cfg_cmspath,$dsql; 
    $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); 
        $query="SELECT * FROM #【分隔符】@__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; 
            } 
            } 
    else{$string = str_replace($words, $result, $string); 
    } 
    return $pre.$string; 
    }