Analysis of php file download processing method, _PHP tutorial

Analysis of php file download processing method,

The example in this article describes the processing method of php file download. Share it with everyone for your reference. The specific analysis is as follows:

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

<&#63;php
header("Content-Type: application/force-download");
header("Content-Disposition: attachment; filename=testname.jpg"); 
readfile("images/test.jpg");
&#63;>

Analysis of the above code:

The first line of code is forced download;
The second line of code assigns a name to the downloaded content;
The third line of code reads 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 PHP cannot send download information after the first header.
Today I finally found out a solution, using iframe.

<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

I hope this article will be helpful to everyone’s PHP programming design.