Common processing methods for file downloads in PHP

This article mainly introduces the method of processing php file downloads. It analyzes the common processing techniques of php for file downloads with examples. It has certain reference value. Friends in need can refer to it.

The examples of this article describe php How to handle file downloads. The specific analysis is as follows:

php can handle file downloads under various conditions. Let’s first look at the following example:

<?php
header("Content-Type: application/force-download");
header("Content-Disposition: attachment; filename=testname.jpg"); 
readfile("images/test.jpg");
?>

Analysis of the above code:

The first line of code is forced download ;
The second line of code is to assign a name to the downloaded content;
The third line of code is to read the downloaded content into the file.

I have always thought that it is impossible to download multiple files at the same time in one page, because after the first header of php sends the download information, it cannot be sent again.
Today I finally know a solution, using iframe to achieve it.

<iframe src="1.zip" style="border-style:none;width:0;height:0;">
</iframe>
<iframe src="2.zip" style="border-style:none;width:0;height:0;">
</iframe>

You can also use js to generate iframe

Summary: The above is the entire content of this article, I hope it will be helpful to everyone's learning.

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