Assuming your question is for uploading a file from a web browser onto a server here...
AFAIK the Browse isn't platform or language specific...
You just need to make sure you have three things in your code:
For the input box you're using for the filename,
<input type="file" name="whatever">
... make sure your <form> tag has enctype="multipart/form-data" in it... this tells the browser to acutally send the contents of the file.
The third thing you need is an upload handler. This is a function or class that takes the contents of the file field and saves them to the webserver. I'm too new to PHP to tell you how to do it, but I can tell you you'll need it! 😃
