How do you loop through $_FILES array?

Question

Here are the inputs I want to loop through

Main photo:   
Side photo 1: 

        

Answer 1

just rename your fields this way

Main photo:   
Side photo 1: 
Side photo 2: 
Side photo 3: 

and then you'll be able to iterate it usual way:

foreach($_FILES as $file){
  echo $file['name']; 
}