gistfile1.php

function upload()
{
    $signID = isset( $_POST['signID'] ) ? $_POST['signID'] : false ;

    $uploaddir = '/uploads/';
    $file = basename($_FILES['file']['name']);
    $uploadfile = $uploaddir . $file;

    if (move_uploaded_file($_FILES['file']['tmp_name'], $uploadfile)) {
        sendResponse(200, 'Upload Successful');
        return true;
    }
    sendResponse(403, 'Upload Failed');
        return false;
}