allow users to upload media on my website - PHP

This is my website: [login to view URL] I need a form that will allow users to upload certain files on my server. I only want to allow certain file extensions on my site (see attachment). The code has to be written in PHP. All the information are required so it should not submit if you're missing an information. See the attachment for more details. This is a low budget project so please bid low. Thank you.