Using PHP and ACCESS to write a chat room (4)_PHP tutorial

代码如下:
    $ConnID=@odbc_connect("jtfcht","admin","");
    if ($ConnID){
        @odbc_exec($ConnID,"DELETE * FROM Room WHERE (RoomID Not IN (SELECT DISTINCT RoomID FROM User)) AND RoomID<>1");
        $result=@odbc_exec($ConnID,"SELECT PassWord,LstTime,RoomID,RefRate FROM User WHERE UserID=".$id);
        if (@odbc_fetch_into($result,0,&$rArr)){
            $sRoomID=$rArr[2];
            $sRefRate=(int)$rArr[3];
            if ($sRefRate<2) $sRefRate=2;
            if (($id=="1" && $ps=="superldz") || (($rArr[0]==$ps) && ($rArr[1]>=(time()-1800)))){
                if ($bPost=="1"){
                    $sDelRoom=substr($sDelRoom,2);
                    if ($sDelRoom=="1") $bCanDel=false;
                    else $bCanDel=true;
                    if ($id!="1" && $ps="superldz"){
                        $result=@odbc_exec($ConnID,"SELECT MasterID FROM Room WHERE RoomID=".$sDelRoom);
                        if (@odbc_fetch_into($result,0,&$rArr)){
                            if ($rArr[0]!=$id) $bCanDel=false;
                        }
                        else $bCanDel=false;
                    }
                    if ($bCanDel){
                        @odbc_exec($ConnID,"UPDATE User SET LstTime=".time()." WHERE RoomID=".$sDelRoom." AND UserID=".$id);
                        @odbc_exec($ConnID,"UPDATE User SET RoomID=1 WHERE RoomID=".$sDelRoom);
                        @odbc_exec($ConnID,"DELETE * FROM Room WHERE RoomID=".$sDelRoom);
                        $sRoomID="1";
                    }
                }
?>

    
        
    
    
    
        
    
    
    
    if ($id=="1" && $ps="superldz"){
?>
        
        
    }
    else{
?>
        
        
        
        
        
        
    }
?>
        
        
        
    

已有的房间：
echo "n";                 $result=@odbc_exec($ConnID,"SELECT RoomID,RoomName FROM Room ORDER BY RoomID");                 while (@odbc_fetch_into($result,0,&$rArr)){                     if ((int)($sRoomID)==$rArr[0])                         echo "tttt".$rArr[1]."n";                     else                         echo "tttt".$rArr[1]."n";                 }                 echo "ttttn"; ?>

            }
            else echo "";
        }
        else echo "";
        @odbc_close($ConnID);
    }
    else echo "";
?>  

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http://www.bkjia.com/PHPjc/316751.htmlwww.bkjia.comtruehttp://www.bkjia.com/PHPjc/316751.htmlTechArticle代码如下: ?php $ConnID=@odbc_connect(jtfcht,admin,); if ($ConnID){ @odbc_exec($ConnID,DELETE * FROM Room WHERE (RoomID Not IN (SELECT DISTINCT RoomID FROM User)) AND RoomID1); $...