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