private static function _defaultHeaders($apiKey)
{
$appInfo = Stripe::getAppInfo();
$uaString = 'Stripe/v1 PhpBindings/' . Stripe::VERSION;
$langVersion = phpversion();
$uname = php_uname();
$curlVersion = curl_version();
$appInfo = Stripe::getAppInfo();
$ua = array('bindings_version' => Stripe::VERSION, 'lang' => 'php', 'lang_version' => $langVersion, 'publisher' => 'stripe', 'uname' => $uname, 'httplib' => 'curl ' . $curlVersion['version'], 'ssllib' => $curlVersion['ssl_version']);
if ($appInfo !== null) {
$uaString .= ' ' . self::_formatAppInfo($appInfo);
$ua['application'] = $appInfo;
}
$defaultHeaders = array('X-Stripe-Client-User-Agent' => json_encode($ua), 'User-Agent' => $uaString, 'Authorization' => 'Bearer ' . $apiKey);
return $defaultHeaders;
}
