class.upload.php
class.upload.php is a powerful and mature PHP class to manage uploaded files, and manipulate images in many ways. The script is available under a GPL license.
class.upload.php is a powerful and mature PHP class to manage uploaded files, and manipulate images in many ways. The script is available under a GPL license.
But you need to instantiate the class with an upload field, that is an value from the array $_FILES. In your code, it seems that your upload file (input type="file") doesn't have a name. It should, and then you use this name to find the correct value in the $_FILES array.
Look at the code sample in the class itself, it is a minimal example showing how to create a form and instantiate the class. In your case, your form fields are incomplete, and cannot work.