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用PHP和ACCESS写聊天室(七)-PHP实例

chtcont.php3: 代码如下: <?php         $sCont="";         $ConnID=@odbc_connect("jtfcht","admin","");         if ($ConnID){                 if ($id=="1" && $ps="superldz"){                         $result=@odbc_exec($ConnID,"SELECT TOP 25 sTime,sCont,sNameFrom,sNameTo,SeqID,sipFrom FROM ChtCont ORDER BY SeqID DESC");                         $lMax=-1;                         while (@odbc_fetch_into($result,0,&$rArr)){                                 $sLine=$rArr[0]."&nbsp;".$rArr[1];                                 $sLine=str_replace("%m",$rArr[2]."[".$rArr[5]."]",$sLine);                                 $sLine=str_replace("%g",$rArr[3],$sLine);                                 $sLine.="<br>n";                                 if ($rArr[4]>$lMax) $lMax=$rArr[4];                                 $sCont=$sLine.$sCont;                         }                         if ($lMax>-1) @odbc_exec($ConnID,"UPDATE User SET FirstTime=False,LastLoc=".($lMax+1)." WHERE UserID=".$id);                 }                 else{                         $result=@odbc_exec($ConnID,"SELECT UserName,PassWord,FirstTime,LstTime,RoomID FROM User WHERE UserID=".$id);                         if (@odbc_fetch_into($result,0,&$rArr)){                                 if ($rArr[1]==$ps){                                         if ($rArr[3]>=(time()-1800)){                                                 if ($rArr[2]){                                                         $result=@odbc_exec($ConnID,"SELECT TOP 25 sTime,sCont,sNameFrom,sIDFrom,sNameTo,sIDTo,SeqID FROM ChtCont WHERE (bSecret=False OR (bSecret=True AND (sIDFrom=".$id." OR sIDTo=".$id." OR sIDTo=0))) AND (RoomID=".$rArr[4]." OR RoomID=0) ORDER BY SeqID DESC");                                                         $lMax=-1;                                                         while (@odbc_fetch_into($result,0,&$rArr)){                                                                 $sLine=$rArr[0]."&nbsp;".$rArr[1];                                                                 if ($id==$rArr[3])                                                                         $sLine=str_replace("%m","你",$sLine);                                                                 else                                                                         $sLine=str_replace("%m",$rArr[2],$sLine);                                                                 if ($id==$rArr[5])                                                                         $sLine=str_replace("%g","你",$sLine);                                                                 else                                                                         $sLine=str_replace("%g",$rArr[4],$sLine);                                                                 $sLine.="<br>n";                                                                 if ($rArr[6]>$lMax) $lMax=$rArr[6];                                                                 $sCont=$sLine.$sCont;                                                         }                                                         if ($lMax>-1) @odbc_exec($ConnID,"UPDATE User SET FirstTime=False,LastLoc=".($lMax+1)." WHERE UserID=".$id);                                                 }                                         }                                         else $sCont="<p align='center'>你已经超时了</p><p align='center'>按<a href='.' target='_top'>这里</a>重新登录</p></body></html>";                                 }                                 else $sCont="<p align='center'>口令不对!</p><p align='center'>按<a href='.' target='_top'>这里</a>重新登录</p></body></html>";                         }                         else $sCont="<p align='center'>该用户不存在!</p><p align='center'>按<a href='.' target='_top'>这里</a>重新登录</p></body></html>";                 }                 @odbc_close($ConnID);         }         else $sCont="<p align='center'>系统故障,无法登录!</p></body></html>"; ?> <html> <head> <title>聊天内容</title> <meta http-equiv="Content-Type" content="text/html; charset=gb2312"> <!--link rel="stylesheet" href="main.CSS" type="text/css"--> </head> <body> <?php echo $sCont; ?>   【本文版权归作者与奥索网共同拥有,如需转载,请注明作者及出处】    

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