在某帝国面试的时候问题了这个题: 怎么处理post提交重复的问题, 后来跟@暖阳交流,他说记录时间,我没有明白,我想的是用session在表单页面记录下,然后提交页面判断,如果相等则视为成功,并清空session,但有个问题是如果表单页面是html的呢,乍办?要不调个php验证的页面?类似验证码的功能. 还有的说用 header头设置过期时间...但没试.以下是我php写的,经测试可用.
复制代码 代码如下:
//开启session
session_start();
//如果有提交标识
if(isset($_GET['action']) && $_GET['action'] === 'save'){
//如果有session且跟传过来的值一样才算提交
if(isset($_SESSION['__open_auth']) && isset($_POST['auth']) && $_SESSION['__open_auth'] == $_POST['auth']){
print_r($_POST);
$_SESSION['__open_auth'] = null;//清空
} else {
//走起
header("location: post.php");
}
exit();
}
//授权
$auth = $_SESSION['__open_auth'] = time();
?>

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