php get data from api with key and id

1function callAPI($method, $url, $data){
2   $curl = curl_init();
3   switch ($method){
4      case "POST":
5         curl_setopt($curl, CURLOPT_POST, 1);
6         if ($data)
7            curl_setopt($curl, CURLOPT_POSTFIELDS, $data);
8         break;
9      case "PUT":
10         curl_setopt($curl, CURLOPT_CUSTOMREQUEST, "PUT");
11         if ($data)
12            curl_setopt($curl, CURLOPT_POSTFIELDS, $data);			 					
13         break;
14      default:
15         if ($data)
16            $url = sprintf("%s?%s", $url, http_build_query($data));
17   }
18   // OPTIONS:
19   curl_setopt($curl, CURLOPT_URL, $url);
20   curl_setopt($curl, CURLOPT_HTTPHEADER, array(
21      'APIKEY: 111111111111111111111',
22      'Content-Type: application/json',
23   ));
24   curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1);
25   curl_setopt($curl, CURLOPT_HTTPAUTH, CURLAUTH_BASIC);
26   // EXECUTE:
27   $result = curl_exec($curl);
28   if(!$result){die("Connection Failure");}
29   curl_close($curl);
30   return $result;
31}

1$get_data = callAPI('GET', 'https://api.example.com/get_url/'.$user['User']['customer_id'], false);
2$response = json_decode($get_data, true);
3$errors = $response['response']['errors'];
4$data = $response['response']['data'][0];