File type

[austinderrick2]

How can you find a file's type as the user is uploading it?

I want a script that will throw an error if the filename is not .dht

Thanks!

[Merve]

Use [man]mime_content_type[/man] in most cases, but since .dht files don't have a mimetype, use this function:

function check_extension ($extension) {
     if (substr($extension, -3)!="dht")) {
          die("Not a valid Gauss data file!");
     }
}

As you can see, this is a primitive function. Take the code from it, add some code here and there. You might want to open the file and check if it has a header or something that all Gauss data files should have. (I wouldn't know; I don't know anything about Gauss files.)

[barand]

It's part of the info in $_FILES array

$ftype = $_FILES['userfile']['type'];