$_FILES Not Working?

Question

I am submitting files via this way, inside of a form (with a submit button, form tags, etc):

<fieldset>
        <input type="file" name="file" />
    </fieldset>

And I am trying to pull it/use it with PHP this way:

$file = $orgname."/".basename($_FILES['file']['name']);
move_uploaded_file($_FILES['file']['tmp_name'], $file);

And I am getting these errors:

Notice: Undefined index: file in C:\wamp\www\generic\addorg.php on line 45

Notice: Undefined index: file in C:\wamp\www\generic\addorg.php on line 46

What could be causing this? Everything I've looked into suggests it should work.

Answer 1

form needs to be set enctype=multipart/form-data

Answer 2

Make sure your <form... specifies enctype="multipart/form-data">