Example of using CURL to GET a response

  $Url = "mydomain.org/somefile.php?MyParameter1=abc&MyParameter2=2";
  $ch = curl_init();
  curl_setopt($ch, CURLOPT_URL, $Url);
  curl_setopt($ch, CURLOPT_HTTPGET, true);					//You don't have to include this for it to work as GET
  curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true); 		//Follow any page redirects etc (optional)
  curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);				//<<<Include this for the output of curl to go to the curl_exec() output below instead of the browser screen
  $CurlResult= curl_exec($ch);
  $HttpCode = curl_getinfo($ch, CURLINFO_HTTP_CODE);
  curl_close($ch);

  if ($HttpCode !== 200)
    die("Curl request failed, HTTP status code: $HttpCode");

  //If your output is json then you can decode it with this:
  $DecodedJson = json_decode($CurlResult);
  echo "CurlResult: ";
  print_r($CurlResult);
  echo "<br>DecodedJson: ";
  print_r($DecodedJson);

GET with query parameters loaded as an array

They are still added to the URL, but this method lets you load them as an array

$QueryParameters = [
    'param1' => 'value1',
    'param2' => 'value2'
];

  $Url = "mydomain.org/somefile.php";
  $Url .= '?' . http_build_query($QueryParameters);      //Append query parameters to URL
  $ch = curl_init();
  curl_setopt($ch, CURLOPT_URL, $Url);
  curl_setopt($ch, CURLOPT_HTTPGET, true);					//You don't have to include this for it to work as GET
  curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true); 		//Follow any page redirects etc (optional)
  curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);				//<<<Include this for the output of curl to go to the curl_exec() output below instead of the browser screen
  $CurlResult= curl_exec($ch);
  $HttpCode = curl_getinfo($ch, CURLINFO_HTTP_CODE);
  curl_close($ch);

  if ($HttpCode !== 200)
    die("Curl request failed, HTTP status code: $HttpCode");

  //If your output is json then you can decode it with this:
  $DecodedJson = json_decode($CurlResult);
  echo "CurlResult: ";
  print_r($CurlResult);
  echo "<br>DecodedJson: ";
  print_r($DecodedJson);

Add header fields

  curl_setopt($ch, CURLOPT_HTTPHEADER, array('Content-Type: application/json'));
  //For multiple entires use this instead:
  curl_setopt($ch, CURLOPT_HTTPHEADER, array('Content-Type: application/json', "Token:$MyAcccessToken"));