Saferpay cURL Issue

gistfile1.php

<?php
// Workaround
$cmd = sprintf("curl -F 'spUsername=%s' -F 'spPassword=%s' -F 'UAFState=login' -F 'CustomerID=%s' -F 'file=%s' %s",
    'e99867001',
    'XAjc3Kna',
    '99867',
    '@/Users/Test/Sites/saferpay/99867-GL01.IN',
    'https://www.saferpay.com/user/FileImport/ScriptUpload.aspx'
);
$result = array();
exec($cmd, $result);
$result = join('', $result);