我在哪里可以在 laravel 中设置标题 [英] Where can I set headers in laravel
问题描述
我想将标头设置为 array('Cache-Control'=>'no-cache, no-store, max-age=0, must-revalidate','Pragma'=>'no-cache','Expires'=>'Fri, 01 Jan 1990 00:00:00 GMT'); 对于我所有的视图，目前我在返回视图时在所有控制器中执行此操作，例如
I want to set headers as array('Cache-Control'=>'no-cache, no-store, max-age=0, must-revalidate','Pragma'=>'no-cache','Expires'=>'Fri, 01 Jan 1990 00:00:00 GMT'); for all my views, currently I'm doing this in all controllers while returning views, like
$headers=array('Cache-Control'=>'no-cache, no-store, max-age=0, must-revalidate','Pragma'=>'no-cache','Expires'=>'Fri, 01 Jan 1990 00:00:00 GMT');
Redirect::to('/',301,$headers);`
因此，可以在全局范围内完成，而不是为每个路由编写此代码，以便为每个视图设置标题.
So instead of writing this for each and every route can it be done in global scope, so that headers are set for every view.
我尝试通过创建后过滤器来设置标题，但没有让它工作.
I tried setting headers by creating after filter, but didn't get it to work.
谁能告诉我在哪里可以设置我所有视图的标题?
Can anyone tell me where can I set the headers for all my views?
更新我的视图文件元内容之一
UPDATE One of my view file meta content
<!doctype html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>
现在当我使用 Redirect::to('/',301,$headers)firebug 中的标头是
Now when i use Redirect::to('/',301,$headers)
The header in firebug is
Cache-Control max-age=0, must-revalidate, no-cache, no-store, private
Connection Keep-Alive
Content-Type text/html; charset=UTF-8
Date Tue, 09 Jul 2013 14:52:08 GMT
Expires Fri, 01 Jan 1990 00:00:00 GMT
当我使用 Redirect::to('/');
firebug 中的标头是
The header in firebug is
Cache-Control no-cache
Connection Keep-Alive
Content-Type text/html; charset=UTF-8
Date Tue, 09 Jul 2013 14:52:08 GMT
推荐答案
有几种不同的方法可以做到这一点 - 都有优点/缺点.
There are a couple of different ways you could do this - all have advantages/disadvantages.
选项 1(简单):由于数组只是静态数据 - 只需手动将标题直接放在视图布局中 - 即不要从任何地方传递它 - 直接在视图中对其进行编码.
Option 1 (simple): Since the array is just static data - just manually put the headers in your view layouts directly - i.e. dont pass it from anywhere - code it straight in your view.
<?php
//set headers to NOT cache a page
header("Cache-Control: no-cache, must-revalidate"); //HTTP 1.1
header("Pragma: no-cache"); //HTTP 1.0
header("Expires: Sat, 26 Jul 1997 05:00:00 GMT"); // Date in the past
?>
选项 2: 使用 查看作曲家.您可以在过滤器之前使用 App 将标题绑定到您应用中的所有视图.
Option 2: Use view composers. You can use an App before filter to bind the header to all views in your app.
App::before(function($request)
{
$headers=array('Cache-Control'=>'no-cache, no-store, max-age=0, must-revalidate','Pragma'=>'no-cache','Expires'=>'Fri, 01 Jan 1990 00:00:00 GMT');
View::share('headers', $headers);
});
然后在您的视图中回显 $headers.
Then just echo out the $headers in your view(s).
注意:您必须让视图设置您的标题 - 这就是为什么我们将标题传递"到 Laravel 处理的视图中.如果您尝试从过滤器或其他内容中输出标头本身，则会导致问题.
Note: you must let the view set your headers - that is why we are 'passing' the header into view for Laravel to handle. If you try and output the header itself from within a filter or something, you'll cause issues.
编辑选项 3:我刚刚发现了这个 - 你可以试试这个
Edit Option 3: I just found out about this - you could try this
App::before(function($request)
{
Response::header('Cache-Control', 'nocache, no-store, max-age=0, must-revalidate');
Response::header('Pragma', 'no-cache');
Response::header('Expires', 'Fri, 01 Jan 1990 00:00:00 GMT');
});
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