protected function getServerMetaInfoValue()
{
// use a stdClass instead of specific class to keep out null properties
$serverMetaInfo = new stdClass();
$serverMetaInfo->platformIdentifier = sprintf('%s; php version %s', php_uname(), phpversion());
$serverMetaInfo->sdkIdentifier = 'PHPServerSDK/v' . static::SDK_VERSION;
$serverMetaInfo->sdkCreator = 'Ingenico';
$integrator = $this->communicatorConfiguration->getIntegrator();
if (!is_null($integrator)) {
$serverMetaInfo->integrator = $integrator;
}
$shoppingCartExtension = $this->communicatorConfiguration->getShoppingCartExtension();
if (!is_null($shoppingCartExtension)) {
$serverMetaInfo->shoppingCartExtension = $shoppingCartExtension;
}
// the sdkIdentifier contains a /. Without the JSON_UNESCAPED_SLASHES, this is turned to \/ in JSON.
return base64_encode(json_encode($serverMetaInfo, JSON_UNESCAPED_SLASHES));
}
