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