1
正如我在之前的文章中提到的,我們正在爲特定網站創建聊天。現在這個聊天將不得不檢索在線用戶的名字,並且一旦一個用戶退出聊天,就會自動更新。我們能夠通過使用PHP的孤獨和現在我們正在嘗試使用jQuery來避免經常refreshing.so創建至今這一點,這是我們所擁有的:獲取在線用戶的名稱
<?php
session_start(); //Configuation
?>
<link rel="stylesheet" type="text/css" href="http://www.pinoyarea.com/videochat/css/winterblues.css">
<?php
$name = $_SESSION['username'];
$room = $_SESSION['room'];
$user = $_SESSION['user'];
if($name == NULL || $room == NULL || $user = NULL)
{
echo "<script>window.location = 'http://www.pinoyarea.com/index.php?p=member/signup';</script>";
}
include "connect.php";
$timeoutseconds = 60; // length of session, 20 minutes is the standard
$timeoutseconds_idle = 30;
$timestamp=time();
$timeout=$timestamp-$timeoutseconds;
$timeout_idle=$timestamp-$timeoutseconds_idle;
$PHP_SELF = $_SERVER['PHP_SELF'];
if (!empty($_SERVER["HTTP_CLIENT_IP"]))
{
//check for ip from share internet
$ip = $_SERVER["HTTP_CLIENT_IP"];
}
elseif (!empty($_SERVER["HTTP_X_FORWARDED_FOR"]))
{
// Check for the Proxy User
$ip = $_SERVER["HTTP_X_FORWARDED_FOR"];
}
else
{
$ip = $_SERVER["REMOTE_ADDR"];
}
$temp = @mysql_query("SELECT * FROM useronline WHERE online_name='$name' AND online_user='$user' AND online_room='$room'");
$rowie = @mysql_num_rows($temp);
// Add this user to database
$loopcap = 0;
while ($loopcap<3){
if($rowie == 0 AND $name != NULL)
{
@mysql_query("insert into useronline values('$timestamp','$ip','$PHP_SELF','$name','$room','$user')");
}
else
{
} // in case of collision
$timestamp = $timestamp+$ip{0}; $loopcap++;
}
// Delete users that have been online for more then "$timeoutseconds" seconds
mysql_query("delete from useronline where timestamp<$timeout");
//Modified
// Select users online
$result = @mysql_query("select distinct online_name from useronline");
$result2 = @mysql_query("SELECT distinct online_name FROM useronline WHERE online_room='$room'");
$user_count = @mysql_num_rows($result2);
mysql_free_result($result);
@mysql_close();
// Show all users online
echo '<table name="tableonline" width="180px">';
if ($user_count==1)
{
echo '<tr><th>';
echo '<font size="1px" style="font-family:arial;"><strong>'.$user_count.' Toozer Online</th></tr>';
}
else
{
echo '<tr><th>'.$user_count.' Toozers Online</strong></font></th></tr></table>';
}
echo "</table><br /><table width='180px'>";
while($cell = mysql_fetch_array($result2))
{
$timestamping = $cell["timestamp"];
if($timestamping >= $timeout_idle && $timestamping < $timeout)
{
$src = "http://www.pinoyarea.com/images/videochat/user-offline.png";
}
else
{
$src = "http://www.pinoyarea.com/images/videochat/user-online.png";
}
echo '<tr><td><img src="'.$src.'"/><font size="1px" style="text-decoration:none;font-family:tahoma;"></td><td>'.$cell["online_name"].'</font>';
echo '<br /></td></tr>';
}
echo '<table>';
?>
<script type="text/javascript" src="http://code.jquery.com/jquery-1.4.2.min.js"> </script>
<script>
$(document).ready(function() {
$("#tableonline").load("online_users.php");
var refreshId = setInterval(function() {
$("#tableonline").load('online_users.php?randval='+ Math.random());}, 3000);
});
</script>
//<META HTTP-EQUIV="Refresh" CONTENT="10">
那麼....有什麼問題? –
您是否想要評論該元刷新標記?如果是這樣,'/ /'不會在html中工作,你需要'' –
問題是,一旦用戶下線,列表不會更新。這意味着離線用戶的名字仍然出現在在線用戶列表中。我們試圖在用戶離線時自動更新在線用戶列表。 –