php - ZF2 防止提交多个表单

Question

ZF2 表单中有什么方法可以防止多次提交表单吗？我已经使用 isValid() 函数测试了 Captcha 和 CSRF 元素，但它们不会阻止多次提交，尤其是那些带有浏览器刷新按钮的元素。提前致谢

Answer 1

是的，有一个名为 PRG 的 Controller 插件:

发布/重定向/获取插件

引用官方 zf2 文档:

When a user sends a POST request (e.g. after submitting a form), their browser will try to protect them from sending the POST again, breaking the back button, causing browser warnings and pop-ups, and sometimes reposting the form. Instead, when receiving a POST, we should store the data in a session container and redirect the user to a GET request.

http://framework.zend.com/manual/2.0/en/modules/zend.mvc.plugins.html#the-post-redirect-get-plugin

用我自己的话进一步扩展；使用此插件时，每次通过 POST 提交表单时，POST 变量都会存储到 SESSION 中，并且用户会被重定向到不同的路由或只是相同的路由(刷新)。然后可以通过 PRG 插件访问表单变量，作为模仿原始 POST 数组的简单数组。这将防止 FORM 被多次发布。

用法(来自 ZF2 文档):

// Pass in the route/url you want to redirect to after the POST
$prg = $this->prg('/user/register', true);

if ($prg instanceof \Zend\Http\PhpEnvironment\Response) {
    // returned a response to redirect us
    return $prg;
} elseif ($prg === false) {
    // this wasn't a POST request, but there were no params in the flash messenger
    // probably this is the first time the form was loaded
    return array('form' => $myForm);
}

// $prg is an array containing the POST params from the previous request
$form->setData($prg);

// ... your form processing code here