Check if specific input file is empty

Question

In my form I have 3 input fields for file upload:

Answer 1

 if( ($_POST) && (!empty($_POST['cover_image'])) )    //verifies  if post exists and cover_image is not empty
    {
    //execute whatever code you want
    }

Answer 2

if(!empty($_FILES)) { // code if not uploaded } else { // code if uploaded }

Answer 3

if (empty($_FILES['cover_image']['name']))

Answer 4

You can check by using the size field on the $_FILES array like so:

if ($_FILES['cover_image']['size'] == 0 && $_FILES['cover_image']['error'] == 0)
{
    // cover_image is empty (and not an error)
}

(I also check error here because it may be 0 if something went wrong. I wouldn't use name for this check since that can be overridden)

Answer 5

You can check if there is a value, and if the image is valid by doing the following:

if(empty($_FILES['cover_image']['tmp_name']) || !is_uploaded_file($_FILES['cover_image']['tmp_name']))
{
   // Handle no image here...
}

Answer 6

simple :

if($_FILES['cover_image']['error'] > 0)
    // cover_image is empty