网上有很多php文件上传的类，文件上传处理是php的一个特色(至少手册上是将此作为php特点来展示的,个人认为php在数组方面的优异功能更有特色)，学php的人都知道文件上传怎么做，但很多人在编程中却可能忽视了一些细节问题，那就是文件的类型(MIME)。在表单将文件提交给php做处理之前，浏览器会先解析识别一边是什么类型的文件，之后进入php处理环节，php又会去识别解析此文件的原始类型(并不是说你改成什么后缀就是什么文件)。在这个过程中会有一些浏览器兼容，更准确来说是文件类型解析标识不一致的问题。这样在php处理Post过来的文件类型时就需要根据不同浏览器做更多的判断，最典型的就是IE和火狐下的区别。

php上传图片文件(gif,jpg,bmp,png,psd,ico)

史上最完全oophper亲测版php文件上传之文件类型对应表，ie，火狐各一份。

ie 火狐

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

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

* 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)

详细出处参考：http://www.jb51.net/article/23511.htm