How to Set the Correct PHP Headers for PDF File Downloads?

How to Set the Correct PHP Headers for PDF File Download

Many face challenges in enabling PDF file downloads when users click on links in their applications. To address this issue, let's explore the correct header configurations for PDF file downloads.

In PHP, headers can be set using the header() function. It's crucial to properly set the Content-type and Content-Disposition headers. Here's an example:

<code class="php">// Set the content type as PDF
header("Content-type:application/pdf");

// Set the content disposition as attachment
header("Content-Disposition:attachment;filename=downloaded.pdf");

// Read the PDF file and send it to the browser
readfile("original.pdf");</code>

Remember that the header() function must be called before any output is sent, including HTML markup and whitespace. PHP 4 and later versions support output buffering, which can be utilized to handle this timing issue.

By following these instructions, you should be able to successfully configure PHP headers to enable PDF file downloads when users interact with your application's links.

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