#
# FIRST CURL TO GET TOKEN
#
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $PAYPAL_OAUTH_API);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_POSTFIELDS, "grant_type=client_credentials");
curl_setopt($ch, CURLOPT_POST, 1);
curl_setopt($ch, CURLOPT_USERPWD, $PAYPAL_CLIENT . ':' . $PAYPAL_SECRET);
$headers = array();
$headers[] = 'Accept: application/json';
$headers[] = 'Accept-Language: en_US';
$headers[] = 'Content-Type: application/x-www-form-urlencoded';
curl_setopt($ch, CURLOPT_HTTPHEADER, $headers);
$auth = curl_exec($ch);
if (curl_errno($ch)) { echo 'Error:' . curl_error($ch); }
curl_close ($ch);
$auth = json_decode($auth);



#
# SECOND CURL TO GET ORDER DETAILS
#
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $PAYPAL_ORDER_API);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_CUSTOMREQUEST, 'GET');
$headers = array();
$headers[] = 'Content-Type: application/json';
$headers[] = 'Authorization: Bearer ' . $token;
curl_setopt($ch, CURLOPT_HTTPHEADER, $headers);
$details = curl_exec($ch);
if (curl_errno($ch)) {
    echo 'Error:' . curl_errno($ch);
}
curl_close ($ch);
$details = json_decode($details);