PHP 使用MySQL管理Session的回调函数详解
复制代码 代码如下:
class MySession extends DBSQL {
/**
* __construct()
*/
public function __construct() {
parent::__construct ();
}
/**
* open()
*
* @param
* @param
*
* @return
*/
public function open($sSavePath, $sSessionName) {
return true;
}
/**
* close()
*/
public function close() {
return true;
}
/**
* read()
*
* @param
* @return
*/
public function read($sSessionId) {
$sSessionId = addslashes(trim($sSessionId));
$sSql = "SELECT * FROM tb_session WHERE F_SessionId = '{$sSessionId}'";
//echo $sSql;
if(false != ($result = $this->select($sSql))) {
//var_dump($result[0]['F_SessionData']);
return $result[0]['F_SessionData'];
} else {
return '';
}
}
/**
* write()
*
* @param
* @param
*
* @return
*/
public function write($sSessionId, $sSessionData) {
$arrSession = array();
$arrSession['F_SessionId'] = addslashes(trim($sSessionId));
$arrSession['F_SessionData'] = addslashes($sSessionData);
$arrSession['F_SessionCreated'] = date("Y-m-d H:i:s");
$arrSession['F_SessionUpdated'] = date("Y-m-d H:i:s", time() + 1440);
// 新session及更新的session
if (false != ($result = $this->insertData('tb_session', $arrSession))) {
return true;
} else {
$arrUpdateSession = array();
$arrUpdateSession['F_SessionData'] = addslashes($sSessionData);
$arrUpdateSession['F_SessionUpdated'] = date("Y-m-d H:i:s", time() + 1440);
if (false != ($result = $this->updateData('tb_session', "'".addslashes($sSessionId)."'", 'F_SessionId', $arrUpdateSession))) {
return true;
} else {
return false;
}
}
}
/**
* destroy()
*
* @param
* @return
*/
public function destroy($sSessionId) {
$sSessionId = addslashes(trim($sSessionId));
$this->delData($sSessionId, 'F_SessionId', 'tb_session');
return true;
}
/**
* gc
*
* @param
*
* @return
*/
public function gc($nMaxLifeTime) {
$dtExpiredTime = date("Y-m-d H:i:s", time() - $nMaxLifeTime);
$sSql = "DELETE FROM tb_session WHERE F_SessionUpdated //echo $sSql;
$this->delete($sSql);
return true;
}
/**
* __desctruct()
*
*/
function __destruct() {
// ensure session data is written out before classes are destroyed
// (see http://bugs.php.net/bug.php?id=33772 for details)
@session_write_close();
} // __destruct
}
?>

Hot AI Tools

Undresser.AI Undress
AI-powered app for creating realistic nude photos

AI Clothes Remover
Online AI tool for removing clothes from photos.

Undress AI Tool
Undress images for free

Clothoff.io
AI clothes remover

AI Hentai Generator
Generate AI Hentai for free.

Hot Article

Hot Tools

Zend Studio 13.0.1
Powerful PHP integrated development environment

DVWA
Damn Vulnerable Web App (DVWA) is a PHP/MySQL web application that is very vulnerable. Its main goals are to be an aid for security professionals to test their skills and tools in a legal environment, to help web developers better understand the process of securing web applications, and to help teachers/students teach/learn in a classroom environment Web application security. The goal of DVWA is to practice some of the most common web vulnerabilities through a simple and straightforward interface, with varying degrees of difficulty. Please note that this software

EditPlus Chinese cracked version
Small size, syntax highlighting, does not support code prompt function

SublimeText3 Mac version
God-level code editing software (SublimeText3)

Safe Exam Browser
Safe Exam Browser is a secure browser environment for taking online exams securely. This software turns any computer into a secure workstation. It controls access to any utility and prevents students from using unauthorized resources.