How to Download files in php

The following code snippet will guide you to implement the php code that will prompt user to download files in his browser window.


<?php
//download.php
//content type
header('Content-type: text/plain');
//open/save dialog box
header('Content-Disposition: attachment; filename="sample.txt"');
//read from server and write to buffer
readfile('test.txt');
?>




<!--List of Content Types
=====================

pdf   --  application/pdf
sig   --  application/pgp-signature
spl   --  application/futuresplash
class  --  application/octet-stream
ps   --  application/postscript
torrent  --  application/x-bittorrent
dvi   --  application/x-dvi
gz   --  application/x-gzip
pac   --  application/x-ns-proxy-autoconfig
swf   --  application/x-shockwave-flash
tar.gz  --  application/x-tgz
tgz   --  application/x-tgz
tar   --  application/x-tar
zip   --  application/zip
mp3   --  audio/mpeg
m3u   --  audio/x-mpegurl
wma   --  audio/x-ms-wma
wax   --  audio/x-ms-wax
ogg   --  audio/x-wav
wav   --  audio/x-wav
gif   --  image/gif
jpg   --  image/jpeg
jpeg   --  image/jpeg
png   --  image/png
xbm   --  image/x-xbitmap
xpm   --  image/x-xpixmap
xwd   --  image/x-xwindowdump
css   --  text/css
html   --  text/html
htm   --  text/html
js   --  text/javascript
asc   --  text/plain
c  -- text/plain
conf  -- text/plain
text  -- text/plain
txt   -- text/plain
dtd   --  text/xml
xml   --  text/xml
mpeg  -- video/mpeg
mpg  -- video/mpeg
mov   --  video/quicktime
qt  -- video/quicktime
avi   --  video/x-msvideo
asf   --  video/x-ms-asf
asx   --  video/x-ms-asf
wmv   --  video/x-ms-wmv
wmp  -- video/x-ms-wmp
wvx  -- video/x-ms-wvx
wm  -- video/x-ms-wm  
mp4    -- video/mp4
mpv2,mp2ve   -- video/x-mpeg2  
rv  -- video/vnd.rn-realvideo
fli,flc       -- video/fli      
3gpp,3gp -- video/3gpp
bz2   --  application/x-bzip
tbz   --  application/x-bzip-compressed-tar
tar.bz2 -- application/x-bzip-compressed-tar -->