<?php
// +----------------------------------------------------------------------
// | ThinkPHP [ WE CAN DO IT JUST THINK IT ]
// +----------------------------------------------------------------------
// | Copyright (c) 2009 http://thinkphp.cn All rights reserved.
// +----------------------------------------------------------------------
// | Licensed ( http://www.apache.org/licenses/LICENSE-2.0 )
// +----------------------------------------------------------------------
// | Author: liu21st <liu21st@gmail.com>
// +----------------------------------------------------------------------
namespace Behavior;
/**
* 浏览器防刷新检测
*/
class BrowserCheckBehavior
{
public function run(&$params)
{
if ('GET' == $_SERVER['REQUEST_METHOD']) {
// 启用页面防刷新机制
$guid = md5($_SERVER['PHP_SELF']);
// 浏览器防刷新的时间间隔（秒） 默认为10
$refleshTime = C('LIMIT_REFLESH_TIMES', null, 10);
// 检查页面刷新间隔
if (cookie('_last_visit_time_' . $guid) && cookie('_last_visit_time_' . $guid) > time() - $refleshTime) {
// 页面刷新读取浏览器缓存
header('HTTP/1.1 304 Not Modified');
exit;
} else {
// 缓存当前地址访问时间
cookie('_last_visit_time_' . $guid, $_SERVER['REQUEST_TIME']);
//header('Last-Modified:'.(date('D,d M Y H:i:s',$_SERVER['REQUEST_TIME']-C('LIMIT_REFLESH_TIMES'))).' GMT');
}
}
}
}