php简单的会话类代码

=5 
} 
public function set_true() 
{ 
if( isset($_SESSION['user']) ) 
$_SESSION['user'] = 1 ; 
else 
$this->error(); 
} 
public function get_status() 
{ 
return $_SESSION['user']; 
} 
public function end_session() 
{ 
session_destroy(); 
} 
public function error() 
{ 

} 
} 
?>

大概用法
example :
log in page : $session = session::getObject();
$session->set_ture(); // if $row['password'] ==
next page :

$session = session::getObject(); 
if($session->get_status()) 
// .... the user is really 
else 
// ....

log out : $session = session::getObject();
$session->end_session();
由get_status()返回当前用户是否有效登录