需要 PHP session_start 在 15 分钟后过期

Question

我正在尝试使用密码保护 1 个网页。我使用了来自 GitHub 的这段代码，它对我来说效果很好。不幸的是，即使在几天之后它也不会过期，并且在第一次解锁后页面仍然“解锁”。请问，您知道如何设置会话在 15 分钟后过期吗？这是一个代码：<?php# https://gist.github.com/4692807namespace Protect;# Will protect a page with a simple password. The user will only need# to input the password once. After that their session will be enough# to get them in. The optional scope allows access on one page to# grant access on another page. If not specified then it only grants# access to the current page.function with($form, $password, $scope=null) {  if( !$scope ) $scope = current_url();  $session_key = 'password_protect_'.preg_replace('/\W+/', '_', $scope);  session_start();  # Check the POST for access  if( $_POST['password'] == $password ) {    $_SESSION[$session_key] = true;    redirect(current_url());  }  # If user has access then simply return so original page can render.  if( $_SESSION[$session_key] ) return;  require $form;  exit;}#### PRIVATE ####function current_url($script_only=false) {  $protocol = 'http';  $port = ':'.$_SERVER["SERVER_PORT"];  if($_SERVER["HTTPS"] == 'on') $protocol .= 's';  if($protocol == 'http' && $port == ':80') $port = '';  if($protocol == 'https' && $port == ':443') $port = '';  $path = $script_only ? $_SERVER['SCRIPT_NAME'] : $_SERVER['REQUEST_URI'];  return "$protocol://$_SERVER[SERVER_NAME]$port$path";}function redirect($url) {  header("Location: $url");  exit;}

Answer 1

获取用户登录时会话中的当前时间

$_SESSION['user_time']=time()

接下来创建功能并在您想要保护的页面中共享

function isSessionExpired()

{

   if(time()-$_SESSION['user_time']>(15*60))

   { 

      /... your actions here for example unset session or user

   }

}