Braintree\Transaction::createTransactionUrl PHP Method

    public static function createTransactionUrl()
    {
        return Configuration::gateway()->transaction()->createTransactionUrl();
    }

 public function createTransactionViaTr($regularParams, $trParams)
 {
     Test\Helper::suppressDeprecationWarnings();
     $trData = Braintree\TransparentRedirect::transactionData(array_merge($trParams, ["redirectUrl" => "http://www.example.com"]));
     return Test\Helper::submitTrRequest(Braintree\Transaction::createTransactionUrl(), $regularParams, $trData);
 }