升级到dedecms 5.7文档关键词代码部分细节警示

/**         * 高亮问题修正,排除alt Title <a></a>直接的字符替换         *         * @param string $kw         * @param string $body         * @return string         */        function ReplaceKeyword($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 = $this->dsql->Getone("select * from zuimoban_keywords where keyword='$k' And rpurl<>'' ");                                if(is_array($myrow))                                {                                        $karr[] = $k;                                        $GLOBALS['replaced'][$k] = 0;                                        $kaarr[] = "<a href='{$myrow['rpurl']}'><u>$k</u></a>";                                }                                $i++;                        }                }                $body = preg_replace("/(^|>)([^<]+)(?=<|$)/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;        $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        $body = preg_replace("#(<a(.*))(>)(.*)(<)(\/a>)#isU",$body);        /*        foreach($kws as $k)        {            $k = trim($k);            if($k!="")            {                if($i > $maxkey)                {                    break;                }                $myrow = $this->dsql->Getone("SELECT * FROM zuimoban_keywords WHERE keyword='$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 zuimoban_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",$body);        //恢复超链接        $body = preg_replace("#(<a(.*))-\]-(.*)-\[-(\/a>)#isU",$body);        return $body;    }