如何设置会话超时代码PHP

Question

我有一个页面session.php文件和我的代码是：

@session_start(); 
      if(!isset($_SESSION['uname']) || $_SESSION['uname'] == " " || !isset($_SESSION['uid']) || $_SESSION['uid'] == " ") 
        { 
       echo "<script language='javascript'>"; 
       echo "window.location='../index.php'"; 
       echo "</script> "; 
       exit;   
      } 

而且我也想编辑会话超时功能，这个代码是：

$_SESSION['start'] = time(); // taking now logged in time 
     $_SESSION['expire'] = $_SESSION['start'] + (1* 10) ; // ending a session in 30 seconds 
      $now = time(); // checking the time now when home page starts 
      if($now > $_SESSION['expire']) 
      { 
       session_destroy(); 
       echo "Your session has expire ! <a href='logout.php'>Click Here to Login</a>"; 
      } 
      else 
      { 
       echo "This should be expired in 1 min <a href='logout.php'>Click Here to Login</a>"; 
      } 

但是，这段代码无法正常工作，请帮助我如何在session.php页面中设置会话超时。

谢谢。

Answer 1

你可以试试这个，因为，在你的代码中已设定有效期限每个&每次页面加载得到，现在又增加了状态的时间。

@session_start();  
    if(!isset($_SESSION['uname']) || $_SESSION['uname'] == " " || !isset($_SESSION['uid']) || $_SESSION['uid'] == " ") 
    { 
     echo "<script language='javascript'>"; 
     echo "window.location='../index.php'"; 
     echo "</script> "; 
     exit; 
    } 

    $_SESSION['start'] = time(); // taking now logged in time 

    if(!isset($_SESSION['expire'])){ 
     $_SESSION['expire'] = $_SESSION['start'] + (1* 10) ; // ending a session in 30 seconds 
    } 
    $now = time(); // checking the time now when home page starts 

    if($now > $_SESSION['expire']) 
    { 
     session_destroy(); 
     echo "Your session has expire ! <a href='logout.php'>Click Here to Login</a>"; 
    } 
    else 
    { 
     echo "This should be expired in 1 min <a href='logout.php'>Click Here to Login</a>"; 
    }