cURL request in Laravel

Give the query-option from Guzzle a try:

$endpoint = "http://my.domain.com/test.php";
$client = new \GuzzleHttp\Client();
$id = 5;
$value = "ABC";

$response = $client->request('GET', $endpoint, ['query' => [
    'key1' => $id, 
    'key2' => $value,
]]);

// url will be: http://my.domain.com/test.php?key1=5&key2=ABC;

$statusCode = $response->getStatusCode();
$content = $response->getBody();

// or when your server returns json
// $content = json_decode($response->getBody(), true);

I use this option to build my get-requests with guzzle. In combination with json_decode($json_values, true) you can transform json to a php-array.