第四个页面 name=index.php
include ../signup/mysql.php;
header(expires: sun, 28 dec 1997 09:32:45 gmt);
header(cache-control: no-cache, must-revalidate);
header(pragma: no-cache);
header(content-type: text/html; charset=${charset});
?>
charmain
$max_row_length=30;
$select=select row from user_message order by row desc;
        $result=mysql_query($select)or die( false fgfg);
        $rowlist=mysql_fetch_array($result)or die(false);
        $max_row=$rowlist[row];
if($max_row>$max_row_length){
$delete_row=$max_row-$max_row_length+1;
// echo $max_row.
.$delete_row;
         $select=select row from user_message where row        $result=mysql_query($select)or die( false);
        while($row=mysql_fetch_array($result))
            {
                  $sql=delete from user_message where row
                  mysql_query($sql)or die (del false1);
             }
$left=$delete_row;
                 }
else {$left=1;
}
for($i=$max_row; $i>=$left ;$i--)
    {
     $sql=select message,userid,object,status,color,action1,time1 from user_message where row='$i';
     $result=mysql_query($sql)or die(mysql_error());
     $row=mysql_fetch_array($result);
     $time1=$row[time1];
$usert1=$row[userid];
     $objectt1=$row[object];
     $sql=select id from chat_user_list where userid='$usert1';
     $result=mysql_query($sql)or die(mysql_error());
     $rowt1=mysql_fetch_array($result);
     $usert5=$rowt1[id];
$sql=select id from chat_user_list where userid='$objectt1';
     $result=mysql_query($sql)or die(mysql_error());
     if($rowt2=mysql_fetch_array($result))
     $bojectt5=$rowt2[id];
     else $bojectt5=澶у