// Your GraphQL endpoint
$url = 'https://your-graphql-endpoint.com/graphql';

// GraphQL mutation and variables
$mutation = '
mutation CreateProduct($name: String!, $description: String!) {
  createProduct(input: {name: $name, description: $description}) {
    id
    name
    description
  }
}';

// Prepare the JSON payload
$jsonData = json_encode([
    'query' => $mutation,
    'variables' => [
        'name' => 'New Product',
        'description' => 'This is a new product description.'
    ]
]);

// Initialize cURL
$ch = curl_init($url);

// Set cURL options
curl_setopt($ch, CURLOPT_POST, true);
curl_setopt($ch, CURLOPT_POSTFIELDS, $jsonData);
curl_setopt($ch, CURLOPT_HTTPHEADER, [
    'Content-Type: application/json',
    'Authorization: Bearer ' . $your_auth_token // Replace with your actual auth token variable
]);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);

// Execute the cURL session and fetch the response
$response = curl_exec($ch);
curl_close($ch);

// Decode the response
$responseData = json_decode($response, true);