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聊天室php&mysql(四)

程序员文章站 2022-07-02 20:53:11
第四个页面 name="index.php"
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}");

?>

<html>
<head>
<title>charmain</title>
<meta http-equiv="content-type" content="text/html; charset=gb2312">
<meta http-equiv="refresh" content="4; url=<? echo $php_self; ?>?userid=<?echo $userid?>">


</head>

<body bgcolor="#99ccff" text="#000000">
<?    
    $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 $max_row."<br>".$delete_row;
         $select="select row from user_message where row<".$delete_row;
        $result=mysql_query($select)or die(" false");
        while($row=mysql_fetch_array($result))
            {
                  $sql="delete from user_message where row <".$delete_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="大家";



     if($row["userid"]!=$userid){

     $user1="<a href='".$php_self."?userid=$userid'  onclick=parent.bottom.user('".$usert5."')>".$usert5."</a>";
     }
     else $user1=$usert5;
     if($row["object"]!=$userid){

     $user2="<a href='".$php_self."?userid=$userid'  onclick=parent.bottom.user('".$bojectt5."')>".$bojectt5."</a>"; }
     else $user2=$bojectt5;
     $message2=$row["message"];
     $message3=htmlspecialchars($message2);

$message1="<font size=3 color=".$row["color"]."><i>".$user1."</i> 对".$user2." <i>".$row["action1"].": </i>".$message3."</font>" ;

    if($row["status"]==1){
         if($row["object"]==$userid||$row["userid"]==$userid)
        echo "<font size=2 color=ff0000 >私聊</font>".$time1." ".$message1."<br>";
         else continue;
         }
    else {  
        echo $time1." ".$message1."<br>";

         }
    }

?>
</body>
</html>