php标头内容处置

Question

I have a very basic question illustrated by the code snippet below. 我有一个非常基本的问题，由下面的代码片段说明。 This is the relevant part of a much bigger program in which I wish to download a zip file. 这是一个更大的程序的相关部分，我希望在其中下载一个zip文件。 The code as shown, with the comments in place, produce the expected browser output "Download the file now." 显示的代码（带有注释）可以产生预期的浏览器输出“立即下载文件”。

When I un-comment the code, the zip file is correctly downloaded to my browser! 当我取消注释代码时，该zip文件已正确下载到我的浏览器中！

However, the browser output is not produced. 但是，不会产生浏览器输出。 How do I regain control? 如何重新获得控制权？ I would like for the user to then have other options. 我想让用户有其他选择。 (By the way, un-commenting the single "Content-disposition" line is sufficient to cause the loss of control.) （顺便说一句，取消注释单个“ Content-disposition”行就足以导致失去控制。）

I have tried including the code, putting it in a function, many possible combinations of ob_start, ob_end flush, etc., all to no avail. 我试过包括代码，将其放入函数中，ob_start，ob_end刷新等许多可能的组合，但均无济于事。 I am sure I am overlooking something very fundamental and would appreciate some suggestions. 我确信我会忽略一些非常基本的内容，并希望您提出一些建议。

Thanks. 谢谢。

<?php
$sZipFN = 'file.zip';
// header("Content-type: application/zip");
// header("Content-disposition: attachment; filename=$sZipFN");
// readfile($sZipFN);
$sMsg = "Download the file now.";        
?>
<html>
  <body>
    <p> <?php echo $sMsg; ?> </p>
  </body>
</html>

Answer 1

You can't - you have to redirect to the options page and then start the download via javascript redirect ( document.location = 'http://download.url/'; ) 您不能-您必须重定向到选项页面，然后通过javascript重定向（ document.location = 'http://download.url/'; ）开始下载

This will start the download and leave the user on the options page like you desire. 这将开始下载，并根据需要将用户留在选项页面上。

Don't forget to include a 'Click here if the download fails to start' link somewhere near the top of the page (just in case javascript is disabled) 不要忘了在页面顶部附近添加“如果下载无法开始单击此处”链接（以防禁用javascript）

php标头内容处置

问题描述

1 个解决方案

解决方案1
1 2012-08-31 17:58:37

php标头内容处置

问题描述

1 个解决方案

解决方案1 1 2012-08-31 17:58:37

解决方案1
1 2012-08-31 17:58:37