How to pass $name type variable to CRM?

Question

PHP

I have implemented sending a form on wordpress through contact form 7.
There was a need to transfer these requests to custom CRM.
I figured out how to get $name type variables from the form, but I can't figure out how to pass this data to CRM.

There are variables:
$name
$phone
$msg

and code from CRM

<?
//Для работы необходим Curl
$ch = curl_init();
curl_setopt_array($ch , array(
  CURLOPT_URL            => 'http://medvedev.intrumnet.com/onlineforms' ,
  CURLOPT_POST           => true ,
  CURLOPT_RETURNTRANSFER => true ,
  CURLOPT_CUSTOMREQUEST  => "POST" ,
  CURLOPT_POSTFIELDS     => http_build_query(array(
    "action"   => "fillform" ,
    "formtype" => 15 ,
    "data"     => array(
      "def_customer" => array(
        "name" => $_POST[ "form" ][ '15' ][ "def_customer" ][ "name" ] ,
        "phone" => $_POST[ "form" ][ '15' ][ "def_customer" ][ "phone" ]
      ) ,
      "ext_customer" => array(
        "429" => array(
          "type"  => "text" ,
          "value" => $_POST[ "form" ][ '15' ][ "ext_customer" ][ 429 ] /* Прочая информация */
        )
      )
    ) ,
    "ihistory" => $_POST[ 'intrum_stat_history' ] /* Используется для получения данных статистики посетителя сайта, отправившего онлайн-форму, например: источник входа, история просмота страниц и т. д. Вставьте в HTML-форму код, размещённый в пункте &quot;Пример формы в HTML&quot; ниже */
  ))
));
$responseData = json_decode(curl_exec($ch)); // ответ от сервера
curl_close($ch);
echo rawurldecode('%D0%A4%D0%BE%D1%80%D0%BC%D0%B0%20%D1%83%D1%81%D0%BF%D0%B5%D1%88%D0%BD%D0%BE%20%D0%BE%D1%82%D0%BF%D1%80%D0%B0%D0%B2%D0%BB%D0%B5%D0%BD%D0%B0');
?>

How to correctly substitute the script data? for everything to work correctly.