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This issue of the content of the editor will bring you about php how to achieve txt download files, the article is rich in content and professional analysis and description for you, after reading this article, I hope you can get something.

Php to achieve txt download file method: 1, create a PHP sample file; 2, add "function downloadtxt ($file =") {...} "code; 3, through" downloadtxt ("classmsg"); "way to download the file.

This article operating environment: windows7 system, PHP7.1 version, Dell G3 computer.

How does php implement txt download files?

PHP realizes the generation and download of txt files

Generation of 1.txt

This function is used in multiple data outputs. Each field is separated by a space, and the next data is wrapped directly.

Public function dlfileftxt ($data = array (), $filename= "unknown") {header ("Content-type:application/octet-stream"); header ("Accept-Ranges:bytes"); header ("Content-Disposition:attachment;filename=$filename.txt"); header ("Expires:0"); header ("Cache-Control:must-revalidate,post-check=0,pre-check=0"); header ("Pragma:public") If (! empty ($data)) {foreach ($data as $key= > $val) {foreach ($val as $ck = > $cv) {$data [$key] [$ck] = iconv ("UTF-8", "GB2312", $cv) } $data [$key] = implode ("", $data [$key]);} echo implode ("\ n", $data);} exit () } dlfileftxt (array (1 = > array ("student" = > "Xiao Hong", "class" = > "Class one"), 2 = > array ("student" = > "Lao Huang", "class" = > "Class two"), "Class Information")

Txt file name: class information

Txt content:

Xiao Hong Class one

Lao Huang Class two

Code parsing:

"Content-type:application/octet-stream"

/ / only one binary can be submitted, and only one binary can be submitted. If a file is submitted, only one file can be submitted. There can be only one backend receiving parameter, and it can only be a stream (or byte array).

"Accept-Ranges: bytes"

/ / indicates whether the server supports specified range requests and what type of segmentation requests

"Content-Disposition:attachment;filename=$filename.txt"

/ / of course, the filename parameter can contain path information, but User-Agnet ignores this information and only takes the last part of the path information as the file name. When you use this header message when the response type is application/octet- stream, it means that you don't want to display the content directly, but pop up a "file download" dialog box, and it's up to you to decide whether to "open" or "save".

(note: some browsers will not recognize the garbled character code of the Chinese string and need to force the character encoding UTF-8 of the string to be converted.)

Download 1.txt

Because some browsers can interpret txt files, when you use a browser to access a txt on the server, you will open a new window to view the txt content instead of downloading the file

Function downloadtxt ($file = "") {if (! $file) return false; $filename='/ path/'.$file.'.txt'; / / File path header ("Content-Type: application/force-download"); header ("Content-Disposition: attachment; filename=" .basename ($filename)); readfile ($filename);} downloadtxt ("classmsg")

Code parsing:

"Content-Type: application/force-download"

/ / forced download of file contents

Readfile ()

/ / this function reads the file and writes the contents of the file to the standard output device. The return value is the size of the file read

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