PHP File Upload type, the marker name corresponds to mine table-PHP source code

When uploading files or images in php, we will encounter the type of files to be uploaded. If we only limit the suffix, it is easy to bypass it, I have found some tables corresponding to the mine name after the marker, and hope to help you. When uploading files or images in php, we will encounter the type of files to be uploaded. If we only limit the suffix, it is easy to bypass it, I have found some tables corresponding to the mine name after the marker, and hope to help you.

Script ec (2); script

When uploading a file using a PHP script, the format of the file is processed as the PHP file, for example, (.jpg file format is image/jpeg ). This format is first determined by the browser. The browser submits a form to identify a type of file and submits it to php for processing.

Sometimes different browsers have different definitions of file types, so sometimes they need to make judgments on different browsers. In fact, different browser types can be added to the judgment.

The following table lists the file types of IE and Firefox browsers:

Ie

Firefox

Id Suffix File types identified by php 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 Suffix File types identified by php 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

Let's look at an instance.

The Code is as follows:

$ 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.doc ument ': $ 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 ('only upload doc, docx, xls, pdf, and pptfile reupload '); }

The above example limits the upload of doc, docx, xls, pdf, and ppt files. If someone wants to upload other files, such as php or asp files, the system will prompt that the file to be uploaded is invalid.