OrderBuilder::createUserFromFormData

protected function createUserFromFormData()
{
	$errors = [];
	$orderProps = $this->order->getPropertyCollection();

	if ($email = $orderProps->getUserEmail())
	{
		$email = $email->getValue();
	}

	if ($name = $orderProps->getPayerName())
	{
		$name = $name->getValue();
	}

	if ($phone = $orderProps->getPhone())
	{
		$phone = $phone->getValue();
	}

	if ($this->getSettingsContainer()->getItemValue('searchExistingUserOnCreating'))
	{
		$userId = $this->searchExistingUser($email, $phone);
	}

	if (!isset($userId))
	{
		$userId = $this->searchExistingUser($email, $phone);
	}

	if (!isset($userId))
	{
		$userId = CSaleUser::DoAutoRegisterUser(
			$email,
			$name,
			$this->formData['SITE_ID'],
			$errors,
			[
				'PERSONAL_PHONE' => $phone,
				'PHONE_NUMBER' => $phone,
			]
		);

		if (!empty($errors))
		{
			foreach ($errors as $val)
			{
				$this->errorsContainer->addError(new Error($val['TEXT'], 0, 'USER'));
			}
		}
		else
		{
			// ToDo remove it? when to authorize buyer?
			global $USER;
			$USER->Authorize($userId);
		}
	}

	return $userId;
}