聊天室php&mysql(四)
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>
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