curl_setopt_array($ch, array( CURLOPT_URL => $host, CURLOPT_RETURNTRANSFER => true, CURLOPT_POSTFIELDS => $postData //,CURLOPT_FOLLOWLOCATION => true )); in pure php code example

Example: curlopt_postfields php example

 'foo',
    'secondFieldData' => 'bar'
);

$cURLConnection = curl_init('http://hostname.tld/api');
curl_setopt($cURLConnection, CURLOPT_POSTFIELDS, $postRequest);
curl_setopt($cURLConnection, CURLOPT_RETURNTRANSFER, true);

$apiResponse = curl_exec($cURLConnection);
curl_close($cURLConnection);

// $apiResponse - available data from the API request
$jsonArrayResponse - json_decode($apiResponse);