gistfile1.php

<?php

$curl = curl_init();

curl_setopt_array($curl, array(
  CURLOPT_URL => "http://54.191.139.107/api/v2/orders",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "GET",
  CURLOPT_POSTFIELDS => "",
  CURLOPT_HTTPHEADER => array(
    "authorization: abcdefghijk",
    "cache-control: no-cache",
    "content-type: application/json",
    "postman-token: a438f116-55d6-8263-73bb-b93eba84c852"
  ),
));

$response = curl_exec($curl);
$err = curl_error($curl);

curl_close($curl);

if ($err) {
  echo "cURL Error #:" . $err;
} else {
  echo $response;
}

?>