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IE浏览器
id 后缀名 php识别出的文件类型
0 gif image/gif
1 jpg image/jpeg
2 png image/png
3 bmp image/bmp
4 psd application/octet-stream
5 ico image/x-icon
6 rar application/octet-stream
7 zip application/zip
8 7z application/octet-stream
9 exe application/octet-stream
10 avi video/avi
11 rmvb application/vnd.rn-realmedia-vbr
12 3gp application/octet-stream
13 flv application/octet-stream
14 mp3 audio/mpeg
15 wav audio/wav
16 krc application/octet-stream
17 lrc application/octet-stream
18 txt text/plain
19 doc application/msword
20 xls application/vnd.ms-excel
21 ppt application/vnd.ms-powerpoint
22 pdf application/pdf
23 chm application/octet-stream
24 mdb application/msaccess
25 sql application/octet-stream
26 con application/octet-stream
27 log text/plain
28 dat application/octet-stream
29 ini application/octet-stream
30 php application/octet-stream
31 html text/html
32 htm text/html
33 ttf application/octet-stream
34 fon application/octet-stream
35 js application/x-javascript
36 xml text/xml
37 dll application/octet-stream
38 dll application/octet-stream

火狐
id 后缀名 php识别出的文件类型
0 gif image/gif
1 jpg image/pjpeg
2 png image/x-png
3 bmp image/bmp
4 psd application/octet-stream
5 ico image/x-icon
6 rar application/octet-stream
7 zip application/x-zip-compressed
8 7z application/octet-stream
9 exe application/octet-stream
10 avi video/avi
11 rmvb application/vnd.rn-realmedia-vbr
12 3gp application/octet-stream
13 flv application/octet-stream
14 mp3 audio/mpeg
15 wav audio/wav
16 krc application/octet-stream
17 lrc application/octet-stream
18 txt text/plain
19 doc application/msword
20 xls application/vnd.ms-excel
21 ppt application/vnd.ms-powerpoint
22 pdf application/pdf
23 chm application/octet-stream
24 mdb application/msaccess
25 sql text/plain
26 con application/octet-stream
27 log text/plain
28 dat text/plain
29 ini application/octet-stream
30 php application/octet-stream
31 html text/html
32 htm text/html
33 ttf application/octet-stream
34 fon application/octet-stream
35 js text/html
36 xml text/xml
37 dll application/octet-stream
38 class application/java
------------------------------
ie和火狐一样
* application/octet-stream //应用程序
323 text/h323
acx application/internet-property-stream
ai application/postscript
aif audio/x-aiff
aifc audio/x-aiff
aiff audio/x-aiff
asf video/x-ms-asf
asr video/x-ms-asf
asx video/x-ms-asf
au audio/basic
avi video/x-msvideo
axs application/olescript
bas text/plain
bcpio application/x-bcpio
bin application/octet-stream
bmp image/bmp
c text/plain
cat application/vnd.ms-pkiseccat
cdf application/x-cdf
cer application/x-x509-ca-cert
class application/octet-stream
clp application/x-msclip
cmx image/x-cmx
cod image/cis-cod
cpio application/x-cpio
crd application/x-mscardfile
crl application/pkix-crl
crt application/x-x509-ca-cert
csh application/x-csh
css text/css
dcr application/x-director
der application/x-x509-ca-cert
dir application/x-director
dll application/x-msdownload
dms application/octet-stream
doc application/msword
dot application/msword
dvi application/x-dvi
dxr application/x-director
eps application/postscript
etx text/x-setext
evy application/envoy
exe application/octet-stream
fif application/fractals
flr x-world/x-vrml
gif image/gif
gtar application/x-gtar
gz application/x-gzip
h text/plain
hdf application/x-hdf
hlp application/winhlp
hqx application/mac-binhex40
hta application/hta
htc text/x-component
htm text/html
html text/html
htt text/webviewhtml
ico image/x-icon
ief image/ief
iii application/x-iphone
ins application/x-internet-signup
isp application/x-internet-signup
jfif image/pipeg
jpe image/jpeg
jpeg image/jpeg
jpg image/jpeg
jpg image/pjpeg
js application/x-javascript
latex application/x-latex
lha application/octet-stream
lsf video/x-la-asf
lsx video/x-la-asf
lzh application/octet-stream
m13 application/x-msmediaview
m14 application/x-msmediaview
m3u audio/x-mpegurl
man application/x-troff-man
mdb application/x-msaccess
me application/x-troff-me
mht message/rfc822
mhtml message/rfc822
mid audio/mid
mny application/x-msmoney
mov video/quicktime
movie video/x-sgi-movie
mp2 video/mpeg
mp3 audio/mpeg
mpa video/mpeg
mpe video/mpeg
mpeg video/mpeg
mpg video/mpeg
mpp application/vnd.ms-project
mpv2 video/mpeg
ms application/x-troff-ms
mvb application/x-msmediaview
nws message/rfc822
oda application/oda
p10 application/pkcs10
p12 application/x-pkcs12
p7b application/x-pkcs7-certificates
p7c application/x-pkcs7-mime
p7m application/x-pkcs7-mime
p7r application/x-pkcs7-certreqresp
p7s application/x-pkcs7-signature
pbm image/x-portable-bitmap
pdf application/pdf
pfx application/x-pkcs12
pgm image/x-portable-graymap
pko application/ynd.ms-pkipko
pma application/x-perfmon
pmc application/x-perfmon
pml application/x-perfmon
pmr application/x-perfmon
pmw application/x-perfmon
png image/x-png
pnm image/x-portable-anymap
pot, application/vnd.ms-powerpoint
ppm image/x-portable-pixmap
pps application/vnd.ms-powerpoint
ppt application/vnd.ms-powerpoint
prf application/pics-rules
ps application/postscript
pub application/x-mspublisher
qt video/quicktime
ra audio/x-pn-realaudio
ram audio/x-pn-realaudio
ras image/x-cmu-raster
rgb image/x-rgb
rmi audio/mid
roff application/x-troff
rtf application/rtf
rtx text/richtext
scd application/x-msschedule
sct text/scriptlet
setpay application/set-payment-initiation
setreg application/set-registration-initiation
sh application/x-sh
shar application/x-shar
sit application/x-stuffit
snd audio/basic
spc application/x-pkcs7-certificates
spl application/futuresplash
src application/x-wais-source
sst application/vnd.ms-pkicertstore
stl application/vnd.ms-pkistl
stm text/html
sv4cpio application/x-sv4cpio
sv4crc application/x-sv4crc
t application/x-troff
tar application/x-tar
tcl application/x-tcl
tex application/x-tex
texi application/x-texinfo
texinfo application/x-texinfo
tgz application/x-compressed
tif image/tiff
tiff image/tiff
tr application/x-troff
trm application/x-msterminal
tsv text/tab-separated-values
txt text/plain
uls text/iuls
ustar application/x-ustar
vcf text/x-vcard
vrml x-world/x-vrml
wav audio/x-wav
wcm application/vnd.ms-works
wdb application/vnd.ms-works
wks application/vnd.ms-works
wmf application/x-msmetafile
wps application/vnd.ms-works
wri application/x-mswrite
wrl x-world/x-vrml
wrz x-world/x-vrml
xaf x-world/x-vrml
xbm image/x-xbitmap
xla application/vnd.ms-excel
xlc application/vnd.ms-excel
xlm application/vnd.ms-excel
xls application/vnd.ms-excel
xlt application/vnd.ms-excel
xlw application/vnd.ms-excel
xof x-world/x-vrml
xpm image/x-xpixmap
xwd image/x-xwindowdump
z application/x-compress
zip application/zip -firefox
application/x-zip-compressed -IE
php上传压缩文件(rar,7z,zip)
php上传可执行文件(exe)
php上传视频文件,音乐文件,歌词文件(avi,rmvb,3gp,flv,mp3,wav,krc,lrc)
php上传文本文件和文档文件(word->doc,excel->xls,幻灯片->ppt,pdf,chm)
php上传数据库文件(access文件,sql文件,con文件,日志文件log, dat文件)
php上传网页文件,脚本文件,字体文件(ini,php,html,htm,字体文件：ttf,fon, js ,xml)
php上传其他文件(class类文件,dll动态加载库文件)
php文件类型对照表!很方便看出文件是什么类型。如gif是image/gif类型

以下是其它网友的补充：

'acx' => 'application/internet-property-stream',
'ai' => 'application/postscript',
'aif' => 'audio/x-aiff',
'aifc' => 'audio/x-aiff',
'aiff' => 'audio/x-aiff',
'asp' => 'text/plain',
'aspx' => 'text/plain',
'asf' => 'video/x-ms-asf',
'asr' => 'video/x-ms-asf',
'asx' => 'video/x-ms-asf',
'au' => 'audio/basic',
'avi' => 'video/x-msvideo',
'axs' => 'application/olescript',
'bas' => 'text/plain',
'bcpio' => 'application/x-bcpio',
'bin' => 'application/octet-stream',
'bmp' => 'image/bmp',
'c' => 'text/plain',
'cat' => 'application/vnd.ms-pkiseccat',
'cdf' => 'application/x-cdf',
'cer' => 'application/x-x509-ca-cert',
'class' => 'application/octet-stream',
'clp' => 'application/x-msclip',
'cmx' => 'image/x-cmx',
'cod' => 'image/cis-cod',
'cpio' => 'application/x-cpio',
'crd' => 'application/x-mscardfile',
'crl' => 'application/pkix-crl',
'crt' => 'application/x-x509-ca-cert',
'csh' => 'application/x-csh',
'css' => 'text/css',
'dcr' => 'application/x-director',
'der' => 'application/x-x509-ca-cert',
'dir' => 'application/x-director',
'dll' => 'application/x-msdownload',
'dms' => 'application/octet-stream',
'doc' => 'application/msword',
'dot' => 'application/msword',
'dvi' => 'application/x-dvi',
'dxr' => 'application/x-director',
'eps' => 'application/postscript',
'etx' => 'text/x-setext',
'evy' => 'application/envoy',
'exe' => 'application/octet-stream',
'fif' => 'application/fractals',
'flr' => 'x-world/x-vrml',
'flv' => 'video/x-flv',
'gif' => 'image/gif',
'gtar' => 'application/x-gtar',
'gz' => 'application/x-gzip',
'h' => 'text/plain',
'hdf' => 'application/x-hdf',
'hlp' => 'application/winhlp',
'hqx' => 'application/mac-binhex40',
'hta' => 'application/hta',
'htc' => 'text/x-component',
'htm' => 'text/html',
'html' => 'text/html',
'htt' => 'text/webviewhtml',
'ico' => 'image/x-icon',
'ief' => 'image/ief',
'iii' => 'application/x-iphone',
'ins' => 'application/x-internet-signup',
'isp' => 'application/x-internet-signup',
'jfif' => 'image/pipeg',
'jpe' => 'image/jpeg',
'jpeg' => 'image/jpeg',
'jpg' => 'image/jpeg',
'js' => 'application/x-javascript',
'latex' => 'application/x-latex',
'lha' => 'application/octet-stream',
'lsf' => 'video/x-la-asf',
'lsx' => 'video/x-la-asf',
'lzh' => 'application/octet-stream',
'm13' => 'application/x-msmediaview',
'm14' => 'application/x-msmediaview',
'm3u' => 'audio/x-mpegurl',
'man' => 'application/x-troff-man',
'mdb' => 'application/x-msaccess',
'me' => 'application/x-troff-me',
'mht' => 'message/rfc822',
'mhtml' => 'message/rfc822',
'mid' => 'audio/mid',
'mny' => 'application/x-msmoney',
'mov' => 'video/quicktime',
'movie' => 'video/x-sgi-movie',
'mp2' => 'video/mpeg',
'mp3' => 'audio/mpeg',
'mpa' => 'video/mpeg',
'mpe' => 'video/mpeg',
'mpeg' => 'video/mpeg',
'mpg' => 'video/mpeg',
'mpp' => 'application/vnd.ms-project',
'mpv2' => 'video/mpeg',
'ms' => 'application/x-troff-ms',
'mvb' => 'application/x-msmediaview',
'nws' => 'message/rfc822',
'oda' => 'application/oda',
'p10' => 'application/pkcs10',
'p12' => 'application/x-pkcs12',
'p7b' => 'application/x-pkcs7-certificates',
'p7c' => 'application/x-pkcs7-mime',
'p7m' => 'application/x-pkcs7-mime',
'p7r' => 'application/x-pkcs7-certreqresp',
'p7s' => 'application/x-pkcs7-signature',
'pbm' => 'image/x-portable-bitmap',
'pdf' => 'application/pdf',
'pfx' => 'application/x-pkcs12',
'pgm' => 'image/x-portable-graymap',
'php' => 'text/plain',
'pko' => 'application/ynd.ms-pkipko',
'pma' => 'application/x-perfmon',
'pmc' => 'application/x-perfmon',
'pml' => 'application/x-perfmon',
'pmr' => 'application/x-perfmon',
'pmw' => 'application/x-perfmon',
'png' => 'image/png',
'pnm' => 'image/x-portable-anymap',
'pot,' => 'application/vnd.ms-powerpoint',
'ppm' => 'image/x-portable-pixmap',
'pps' => 'application/vnd.ms-powerpoint',
'ppt' => 'application/vnd.ms-powerpoint',
'prf' => 'application/pics-rules',
'ps' => 'application/postscript',
'pub' => 'application/x-mspublisher',
'qt' => 'video/quicktime',
'ra' => 'audio/x-pn-realaudio',
'ram' => 'audio/x-pn-realaudio',
'ras' => 'image/x-cmu-raster',
'rgb' => 'image/x-rgb',
'rmi' => 'audio/mid',
'roff' => 'application/x-troff',
'rtf' => 'application/rtf',
'rtx' => 'text/richtext',
'scd' => 'application/x-msschedule',
'sct' => 'text/scriptlet',
'setpay' => 'application/set-payment-initiation',
'setreg' => 'application/set-registration-initiation',
'sh' => 'application/x-sh',
'shar' => 'application/x-shar',
'sit' => 'application/x-stuffit',
'snd' => 'audio/basic',
'spc' => 'application/x-pkcs7-certificates',
'spl' => 'application/futuresplash',
'src' => 'application/x-wais-source',
'sst' => 'application/vnd.ms-pkicertstore',
'stl' => 'application/vnd.ms-pkistl',
'stm' => 'text/html',
'svg' => 'image/svg+xml',
'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',
'tgz' => 'application/x-compressed',
'tif' => 'image/tiff',
'tiff' => 'image/tiff',
'tr' => 'application/x-troff',
'trm' => 'application/x-msterminal',
'tsv' => 'text/tab-separated-values',
'txt' => 'text/plain',
'uls' => 'text/iuls',
'ustar' => 'application/x-ustar',
'vcf' => 'text/x-vcard',
'vrml' => 'x-world/x-vrml',
'wav' => 'audio/x-wav',
'wcm' => 'application/vnd.ms-works',
'wdb' => 'application/vnd.ms-works',
'wks' => 'application/vnd.ms-works',
'wmf' => 'application/x-msmetafile',
'wmv' => 'video/x-ms-wmv',
'wps' => 'application/vnd.ms-works',
'wri' => 'application/x-mswrite',
'wrl' => 'x-world/x-vrml',
'wrz' => 'x-world/x-vrml',
'xaf' => 'x-world/x-vrml',
'xbm' => 'image/x-xbitmap',
'xla' => 'application/vnd.ms-excel',
'xlc' => 'application/vnd.ms-excel',
'xlm' => 'application/vnd.ms-excel',
'xls' => 'application/vnd.ms-excel',
'xlt' => 'application/vnd.ms-excel',
'xlw' => 'application/vnd.ms-excel',
'xof' => 'x-world/x-vrml',
'xpm' => 'image/x-xpixmap',
'xwd' => 'image/x-xwindowdump',
'z' => 'application/x-compress',
'zip' => 'application/zip',