php上传常见文件类型对应的$_FILES["file"]["type"]。
xls
application/vnd.ms-excel
xlsx
application/vnd.openxmlformats-officedocument.spreadsheetml.sheet
ppt
application/vnd.ms-powerpoint
pptx
application/vnd.openxmlformats-officedocument.presentationml.presentation
doc
application/msword
docx
application/vnd.openxmlformats-officedocument.wordprocessingml.document
zip
application/x-zip-compressed
rar
application/x-zip-compressed
wmv
video/x-ms-wmv
mp3
audio/mpeg
mp4
video/mp4
img
image/gif
image/jpeg
image/pjpeg
有现成的代码你可以直接运行（在php环境下）：html页面：
<html><body><form action="upload_file.php" method="post"enctype="multipart/form-data"><label for="file">Filename:</label><input type="file" name="file" id="file" /><br /><input type="submit" name="submit" value="Submit" /></form></body></html> |
upload_file.php：
<?phpif ((($_FILES["file"]["type"] == "application/vnd.ms-excel")|| ($_FILES["file"]["type"] == "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet"))){if ($_FILES["file"]["error"] > 0){echo "Return Code: " . $_FILES["file"]["error"] . "<br />";}else{echo "Upload: " . $_FILES["file"]["name"] . "<br />";echo "Type: " . $_FILES["file"]["type"] . "<br />";echo "Size: " . ($_FILES["file"]["size"] / 1024) . " Kb<br />";echo "Temp file: " . $_FILES["file"]["tmp_name"] . "<br />";if (file_exists("upload/" . $_FILES["file"]["name"])) { echo $_FILES["file"]["name"] . " already exists. "; }else { move_uploaded_file($_FILES["file"]["tmp_name"], "upload/" . $_FILES["file"]["name"]); echo "Stored in: " . "upload/" . $_FILES["file"]["name"]; }}}else{echo "Invalid file";}?> |
<input type="file" />浏览时只显示指定文件类型
<input type="file" accept="application/msword"><br><br>accept属性列表<br>
1.accept="application/msexcel"
2.accept="application/msword"
3.accept="application/pdf"
4.accept="application/poscript"
5.accept="application/rtf"
6.accept="application/x-zip-compressed"
7.accept="audio/basic"
8.accept="audio/x-aiff"
9.accept="audio/x-mpeg"
10.accept="audio/x-pn/realaudio"
11.accept="audio/x-waw"
12.accept="image/gif"
13.accept="image/jpeg"
14.accept="image/tiff"
15.accept="image/x-ms-bmp"
16.accept="image/x-photo-cd"
17.accept="image/x-png"
18.accept="image/x-portablebitmap"
19.accept="image/x-portable-greymap"
20.accept="image/x-portable-pixmap"
21.accept="image/x-rgb"
22.accept="text/html"
23.accept="text/plain"
24.accept="video/quicktime"
25.accept="video/x-mpeg2"
26.accept="video/x-msvideo"
这个就可以实现选择具体的数据类型，但是有兼容问题，我在测试的时候只有Opera，Chrome能用，火狐和IE都不兼容
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