所以,我正在建立一个登录系统,用户应该登录超过24分钟。这就是我决定将会话存储在我的数据库中的原因
我使用了这个函数:(我建立了自己的sql连接 - > sqlConnectionConfig.php)
sessions.php文件(我在php.net上找到了这段代码。):
class session {
// session-lifetime
var $lifeTime;
// mysql-handle
var $dbHandle;
function open($savePath, $sessName) {
// get session-lifetime
$this->lifeTime = get_cfg_var("session.gc_maxlifetime");
// open database-connection
require_once '../sqlConnectionConfig.php';
$dbHandle = @mysql_connect($sqlHost,$sqlUser,$sqlPass);
$dbSel = @mysql_select_db($sqlDb,$dbHandle);
//return success
if(!$dbHandle || !$dbSel)
return false;
$this->dbHandle = $dbHandle;
return true;
}
function close() {
$this->gc(ini_get('session.gc_maxlifetime'));
// close database-connection
return @mysql_close($this->dbHandle);
}
function read($sessID) {
// fetch session-data
$res = mysql_query("SELECT session_data AS d FROM ws_sessions
WHERE session_id = '$sessID'
AND session_expires > ".time(),$this->dbHandle);
// return data or an empty string at failure
if($row = mysql_fetch_assoc($res))
return $row['d'];
return "";
}
function write($sessID,$sessData) {
// new session-expire-time
$newExp = time() + $this->lifeTime;
// is a session with this id in the database?
$res = mysql_query("SELECT * FROM ws_sessions
WHERE session_id = '$sessID'",$this->dbHandle);
// if yes,
if(mysql_num_rows($res)) {
// ...update session-data
mysql_query("UPDATE ws_sessions
SET session_expires = '$newExp',
session_data = '$sessData'
WHERE session_id = '$sessID'",$this->dbHandle);
// if something happened, return true
if(mysql_affected_rows($this->dbHandle))
return true;
}
// if no session-data was found,
else {
// create a new row
mysql_query("INSERT INTO ws_sessions (
session_id,
session_expires,
session_data)
VALUES(
'$sessID',
'$newExp',
'$sessData')",$this->dbHandle);
// if row was created, return true
if(mysql_affected_rows($this->dbHandle))
return true;
}
// an unknown error occured
return false;
}
function destroy($sessID) {
// delete session-data
mysql_query("DELETE FROM ws_sessions WHERE session_id = '$sessID'",$this->dbHandle);
// if session was deleted, return true,
if(mysql_affected_rows($this->dbHandle))
return true;
// ...else return false
return false;
}
function gc($sessMaxLifeTime) {
// delete old sessions
mysql_query("DELETE FROM ws_sessions WHERE session_expires < ".time(),$this->dbHandle);
// return affected rows
return mysql_affected_rows($this->dbHandle);
}
}
我的admin / index.php和admin / admin.php文件都有相同的session_start():
ini_set("session.gc_maxlifetime", "18000");
require_once 'sessions.php';
$session = new session();
session_set_save_handler(array(&$session,"open"),
array(&$session,"close"),
array(&$session,"read"),
array(&$session,"write"),
array(&$session,"destroy"),
array(&$session,"gc"));
session_start();
index.php包含表单,并通过post将登录数据发送到admin.php 问题是:它会在24分钟后退出。但我不知道为什么,我的数据库成功存储会话。
答案 0 :(得分:0)
我发现,这条线导致了这个问题:
$this->lifeTime = get_cfg_var("session.gc_maxlifetime");
所以,我手动设置它。 ($ this-&gt; lifeTime = 18000;)