<?php
require_once('/path/to/colissimo-sdk/vendor/autoload.php');

<?php
require_once(__DIR__ . '/vendor/autoload.php');

// Configure the authentication
$authentication = new \SengentoBV\ColissimoSdk\ColissimoAuthentication($CONTRACT_NUMBER, $PASSWORD);

// Create an instance of the client
$apiClient = new \SengentoBV\ColissimoSdk\ColissimoApiClient($authentication);

try {
    // Get an instance of the SLS service
    $slsService = $apiClient->getSlsService();
        
    // Perform a call
    // NOTE: You have to leave the contract number/password empty as the authentication information will be (over)written automatically!
    $result = $slsService->checkGenerateLabel(new \SengentoBV\ColissimoSdk\Soap\SlsService\Structs\ColissimoApiCheckGenerateLabel(...))
    print_r($result);
    
} catch (\Exception $e) {
    echo $e->getMessage();
}