PHP文件上传类型后辍名对应mine对照表
使用PHP脚本上传文件时需要将文件格式处理为PHP所认识的文件类型，例如(.jpg的文件格式为image/jpeg)。这个格式的判断首先是由浏览器完成的，浏览器通过表单的提交判断是某类文件，再提交给php进行处理。
有时候不同浏览器对文件类型的定义不相同，因此有时候需要对不同的浏览器做判断。其实可以将不同浏览器的类型都加入到判断中。
下面提供一张IE和火狐浏览器的文件类型对照表：
| 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 | 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 | 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 |
|
下面看一个实例
| 代码如下 |
$temppath=$upfile['tmp_name']; $fileinfo=pathinfo($upfile['name']); $extension=$upfile['type']; //echo $extension; //exit; switch( $extension ) { case 'application/msword': $extension ='doc'; break; case 'application/vnd.ms-excel': $extension ='xls'; break; case 'application/vnd.openxmlformats-officedocument.wordprocessingml.document': $extension ='docx'; break; case 'application/vnd.ms-powerpoint': $extension ='ppt'; break; case 'application/pdf': $extension ='pdf'; break; case 'application/vnd.openxmlformats-officedocument.spreadsheetml.sheet': $extension ='xlsx'; break; default: die('只允许上传doc,docx,xls,pdf,ppt文件 <a href="a.php">重新上传</a>'); } |
上面实例就限制了只能上传doc,docx,xls,pdf,ppt了，这样如果有人想利用后缀名上传其它如php或asp文件就存在会提示上传文件不合法。