PHP + MySQLi - Trying to use enctype=“multipart/form-data” to upload an image to the users row in the localhost DB

I am creating a user profile update page for the user logged in to edit their name, email, and profile picture. I have the text updating successfully, but I cannot get the picture update to work. There is no error produced, but the field in the DB changes from null to " " (blank). I have pasted my update account page code below, any help figuring out what is going wrong would be greatly appreciated!I am creating a user profile update page for th