Question

If a form has not file element and enctype=”multipart/form-data” properties is setted, $_FILES always is setted as an empty array, right? I have to know for handling upload and doing nothing about upload. How can I distinguish $_FILES['name']['error'] > 0 or isset($_FILES[0]) ?

If form has file element, $_FILES['name']['error'] > 0

If form hasn’t file element, isset($_FILES[0])

Answer 1

Make three pages.

• page 1: has a form, no enctype, no file input
• page 2: has a form, no enctype, a file input
• page 3: has a form, proper enctype, a file input

Have each form print_r($_FILES, $_POST) below the <form> html.

Test.