欢迎您访问程序员文章站本站旨在为大家提供分享程序员计算机编程知识!
您现在的位置是: 首页  >  后端开发

PHP 使用MySQL管理Session的回调函数详解_PHP教程

程序员文章站 2022-05-12 20:54:01
...
复制代码 代码如下:

class MySession extends DBSQL {

/**
* __construct()
*/
public function __construct() {
parent::__construct ();

}

/**
* open()
*
* @param $sSavePath
* @param $sSessionNames
*
* @return true
*/
public function open($sSavePath, $sSessionName) {
return true;
}

/**
* close()
*/
public function close() {
return true;
}

/**
* read()
*
* @param $sSessionId
* @return Session data or null on error...
*/
public function read($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 $SessionId
* @param $sSessionData
*
* @return true or false
*/
public function write($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 $sSessionId
* @return true
*/
public function destroy($sSessionId) {
$sSessionId = addslashes(trim($sSessionId));
$this->delData($sSessionId, 'F_SessionId', 'tb_session');
return true;
}

/**
* gc
*
* @param $nMaxLifeTime seconds
*
* @return true
*/
public function gc($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
}
?>

www.bkjia.comtruehttp://www.bkjia.com/PHPjc/327787.htmlTechArticle复制代码 代码如下: ?php class MySession extends DBSQL { /** * __construct() */ public function __construct() { parent::__construct (); } /** * open() * * @param String $sSa...