Unsubscribe - Example of the code (PHP)

try
{
     // create a new cURL resource
     $ch = curl_init();

     // Email
     $Email = "Email To Unsubscribe";

     $EngineMailerApiPath = "https://api.enginemailer.com/restapi/subscriber/emsubscriber/unSubSubscriber?email=" . $Email;
     // Add APIKey into the Headers to be passed in.
     $apiKey = "API Key Here";
     $headers =["APIKey:".$apiKey];

     $options = array(CURLOPT_URL => $EngineMailerApiPath,
     CURLOPT_RETURNTRANSFER => true,
     CURLOPT_ENCODING => '',
     CURLOPT_MAXREDIRS => 10,
     CURLOPT_TIMEOUT => 0,
     CURLOPT_FOLLOWLOCATION => true,
     CURLOPT_CUSTOMREQUEST => 'GET',
     CURLOPT_HTTPHEADER => $headers
     );
     curl_setopt_array($ch, $options);
     // Calls the Rest API
     $respone = curl_exec($ch);

     // close cURL resource, and free up system resources
     curl_close($ch);

     echo $respone;
}
catch (Exception $e)
{
     echo 'Caught exception: ', $e->getMessage(), "\n";
}