limit upload extension?

[Anon]

How do I limit the file extensions from users' uploads like limitting the file size?
Is there a built-in function such as <input type="hidden" name="max_file_size" value="1024">
Thanks

[flipis]

Do this:

When you have the file to manipulate (i assume you know how to do this), you have three sub-variables from the file:

These are:

$file_size
$file_name
<B>$file_type</B>

This last one is the one you have to check. When asked, it shows something like "application/image-jpeg" or whatever the file type is. You can check it this way.

Look here:

http://www.php.net/manual/en/features.file-upload.php

Hope it helps

fLIPIS

[Anon]

Well, I thought about writing a function to check the file extensions, I was just wondering if there's something built-in to php that can perform this task.
Thanks fLIPIS

[hankster]

Try this Eric:
$UploadFile_type = $_FILES['userfile']['type'];
$allowed_mime_types = array("application/x-zip-compressed",
"text/plain",
"image/gif",
"image/pjpeg",
"image/jpeg",
"application/msword",
"application/vnd.ms-excel",
"application/vnd.ms-powerpoint",
"application/pdf");

		if (!in_array($UploadFile_type, $allowed_mime_types)){

//bad file type message
}

[Anon]

Thank you.