How to handle multiple file upload using PHP

Question

I want to upload files using PHP but the problem is that I don\'t know how many files I will upload.

My question is how can I upload files if I use file[]

Answer 1

 if (isset($_FILES['file']['tmp_name'])) {
            for ($i = 0; $i < count($_FILES['file']['tmp_name']); $i++) {
                $tmpFilePath = $_FILES['file']['tmp_name'][$i];
                if ($tmpFilePath != "") {
//. time() . $_FILES['file']['name'][$i] becomes the name of the files
                    $file[$i] = $newFilePath = "upload/myfolder/" . time() . $_FILES['file']['name'][$i];
                    if (move_uploaded_file($tmpFilePath, $newFilePath)) {
                        $file[$i] = $newFilePath = "upload/myfolder/" . time() . $_FILES['file']['name'][$i];
                    }
                }
            }
        }

PUT THIS SIMPLE SCRIPT INTO PHP SCRIPT OR FUNCTION. NB:

$_FILES['file']

because