【发布时间】：2011-01-21 13:27:47
【问题描述】：
我听说在同一台服务器上跨多个域共享会话的最佳方法是使用自定义 php 会话处理程序。 （即，域名不同，如 abc.com、xyz.com 而是单个应用程序。）
但是在我尝试之后，当我尝试从不同域读取 cookie 值时，即使是在 1 个服务器上使用相同数据库的自定义 php 会话处理程序也无法共享会话。
这是我的自定义会话处理程序，如果此处缺少某些内容，请检查或修复。因为我已经尝试了一个星期了。不能让它工作
附：要获取以前的会话 ID，我使用以下链接：newdomain.com/?ssid=[SESSION_ID]
SESSION_INCLUDE.PHP
<?php
// config
$m_host = "localhost"; //MySQL Host
$m_user = "db_user"; //MySQL User
$m_pass = "db_pass"; //MySQL Pass
$m_db = "db_name"; //MySQL Database
$table = "sess_data";
$session_expire = 600; // Session expire time, in seconds (minutes * 60 = seconds)
$gc_probability = 100; // Probability that the garbage collection function will be called. 50% chance by default
ini_set("session.gc_probability",$gc_probability);
/* Open function; Opens/starts session
Opens a connection to the database and stays open until specifically closed
This function is called first and with each page load */
function open ($s,$n) // do not modify function parameters
{
global $session_connection, $m_host, $m_user, $m_pass, $m_db;
$session_connection = mysql_pconnect($m_host,$m_user,$m_pass);
mysql_select_db($m_db,$session_connection);
return true;
}
/* Read function; downloads data from repository to current session
Queries the mysql database, unencrypts data, and returns it.
This function is called after 'open' with each page load. */
function read ($id) // do not modify function parameters
{
global $session_connection,$session_read,$table;
$query = "SELECT data FROM `$table` WHERE id=\"{$id}\"";
$res = mysql_query($query,$session_connection);
if(mysql_num_rows($res) != 1) return ""; // must return string, not 'false'
else
{
$session_read = mysql_fetch_assoc($res);
$session_read["data"] = base64_decode($session_read["data"]);
return $session_read["data"];
}
}
function write ($id,$data) // do not modify function parameters
{
if(!$data) { return false; }
global $session_connection, $session_read, $session_expire, $table;
$expire = time() + $session_expire;
$data = mysql_real_escape_string(base64_encode($data));
if($session_read) $query = "UPDATE `$table` SET data=\"{$data}\", expire=\"{$expire}\" WHERE id=\"{$id}\"";
else $query = "INSERT INTO sess_data SET id=\"{$id}\", data=\"{$data}\", expire=\"{$expire}\"";
mysql_query($query,$session_connection);
return true;
}
function close ()
{
global $session_connection;
mysql_close($session_connection);
return true;
}
function destroy ($id) // do not modify function parameters
{
global $session_connection,$table;
$query = "DELETE FROM `$table` WHERE id=\"{$id}\"";
mysql_query($query,$session_connection);
return true;
}
function gc ($expire)
{
global $session_connection,$table;
$query = "DELETE FROM `$table` WHERE expire < ".time();
mysql_query($query,$session_connection);
}
// Set custom handlers
session_set_save_handler ("open", "close", "read", "write", "destroy", "gc");
// Start session
session_start();
?>
MySQL 数据库说明
create table sess_data (
id2 int not null auto_increment,
id text not null,
data text,
expire int not null,
primary key(id2)
);
【问题讨论】：
-
我认为答案就在这里：stackoverflow.com/questions/9317595/…
标签： php