This is often used as an example:
<? Php
Header ("Content-Type: text/xml ");
$ Xml = '<? Xml version = "1.0" encoding = "UTF-8"?>
<Root>
<Items>
<Item>
<Title> 1 </title>
<Link> 2 </link>
</Item>
</Items>
</Root> ';
Echo $ Xml;
Die ();
The details are as follows:
Ai application/postscript
Aif audio/x-aiff
Aifc audio/x-aiff
Aiff audio/x-aiff
Asc text/plain
Au audio/basic
Avi video/x-msvideo
Bcpio application/x-bcpio
Bin application/octet-stream
Bmp image/bmp
Cdf application/x-netcdf
Class application/octet-stream
Cpio application/x-cpio
Cpt application/mac-compactpro
Csh application/x-csh
Css text/css
Dcr application/x-director
Dir application/x-director
Djv image/vnd. djvu
Djvu image/vnd. djvu
Dll application/octet-stream
Dms application/octet-stream
Doc application/msword
Dvi application/x-dvi
Dxr application/x-director
Eps application/postscript
Etx text/x-setext
Exe application/octet-stream
Ez application/andrew-inset
Gif image/gif
Gtar application/x-gtar
Hdf application/x-hdf
Hqx application/mac-binhex40
Htm text/html
Html text/html
Ice x-conference/x-cooltalk
Ief image/ief
Iges model/iges
Ig model/iges
Jpe image/jpeg
Jpeg image/jpeg
Jpg image/jpeg
Js application/x-javascript
Kar audio/midi
Latex application/x-latex
Lha application/octet-stream
Lzh application/octet-stream
M3u audio/x-mpegurl
Man application/x-troff-man
Me application/x-troff-me
Mesh model/mesh
Mid audio/midi
Midi audio/midi
Mif application/vnd. mif
Mov video/quicktime
Movie video/x-sgi-movie
Mp2 audio/mpeg
Mp3 audio/mpeg
Mpe video/mpeg
Mpeg video/mpeg
Mpg video/mpeg
Mpga audio/mpeg
Ms application/x-troff-ms
Msh model/mesh
Mxu video/vnd. mpegurl
Nc application/x-netcdf
Oda application/oda
Pbm image/x-portable-bitmap
Pdb chemical/x-pdb
Pdf application/pdf
Pgm image/x-portable-graymap
Pgn application/x-chess-pgn
Png image/png
Pnm image/x-portable-anymap
Ppm image/x-portable-pixmap
Ppt application/vnd. ms-powerpoint
Ps application/postscript
Qt video/quicktime
Ra audio/x-realaudio
Ram audio/x-pn-realaudio
Ras image/x-cmu-raster
Rgb image/x-rgb
Rm audio/x-pn-realaudio
Roff application/x-troff
Rpm audio/x-pn-realaudio-plugin
Rtf text/rtf
Rtx text/richtext
Sgm text/sgml
Sgml text/sgml
Sh application/x-sh
Shar application/x-shar
Silo model/mesh
Sit application/x-stuffit
Skd application/x-koan
Skm application/x-koan
Skp application/x-koan
Skt application/x-koan
Smi application/smil
Smil application/smil
Snd audio/basic
So application/octet-stream
Spl application/x-futuresplash
Src application/x-wais-source
Sv4cpio application/x-sv4cpio
Sv4crc application/x-sv4crc
Swf application/x-shockwave-flash
T application/x-troff
Tar application/x-tar
Tcl application/x-tcl
Tex application/x-tex
Texi application/x-texinfo
Texinfo application/x-texinfo
Tif image/tiff
Tiff image/tiff
Tr application/x-troff
Tsv text/tab-separated-values
Txt text/plain
Ustar application/x-ustar
Vcd application/x-cdlink
Fig model/FIG
Wav audio/x-wav
Wbmp image/vnd. wap. wbmp
Wbxml application/vnd. wap. wbxml
Wml text/vnd. wap. wml
Wmlc application/vnd. wap. wmlc
Wmls text/vnd. wap. wmlscript
Wmlsc application/vnd. wap. wmlscriptc
Wrl model/FIG
Xbm image/x-xbitmap
Xht application/xhtml + xml
Xhtml application/xhtml + xml
Xls application/vnd. ms-excel
Xml text/xml
Xpm image/x-xpixmap
Xsl text/xml
Xwd image/x-xwindowdump
Xyz chemical/x-xyz
Zip application/zip