PHP文件上传类型后辍名对应mine对照表

PHP文件上传类型后辍名对应mine对照表_PHP教程

WBOY

Lepaskan： 2016-07-13 10:48:58

asal

1236 orang telah melayarinya

在php上传文件或图片时我们会碰到要限制上传文件的类型，如果我们单只限制后缀名是很容易给绕过去的，下面我找了一些后辍名对应mine对照表，希望对大家有帮助。

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：

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

下面看一个实例

代码如下

复制代码

$temppath=$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文件重新上传');

   }

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。