CTextParser::convert_user

public function convert_user($userId = 0, $userName = '')
{
	static $userTypeList = [];

	if (is_array($userId))
	{
		$userName = $userId[2];
		$userId = $userId[1];
	}

	$userId = (int)$userId;

	$renderParams = [
		'USER_ID' => $userId,
		'USER_NAME' => $userName,
	];

	if ($userId > 0)
	{
		$type = false;

		if (isset($userTypeList[$userId]))
		{
			$type = $userTypeList[$userId];
		}
		else
		{
			if (BitrixMainLoader::includeModule('intranet'))
			{
				$res = BitrixIntranetUserTable::getList([
					'filter' => [
						'ID' => $userId
					],
					'select' => [
						'USER_TYPE'
					]
				]);

				if ($userFields = $res->fetch())
				{
					$type = $userFields['USER_TYPE'];
				}
			}

			$userTypeList[$userId] = $type;
		}

		$pathToUser = (
			!empty($this->userPath)
				? $this->userPath  // forum
				: $this->pathToUser
		);

		if (empty($pathToUser))
		{
			$pathToUser = COption::GetOptionString('main', 'TOOLTIP_PATH_TO_USER', '', SITE_ID);
		}

		switch($type)
		{
			case 'extranet':
				$classAdditional = ' blog-p-user-name-extranet';
				break;
			case 'email':
				$classAdditional = ' blog-p-user-name-email';
				$pathToUser .= '';
				if (
					$this->pathToUserEntityType && $this->pathToUserEntityType != ''
					&& (int)$this->pathToUserEntityId > 0
				)
				{
					$pathToUser .= (strpos($pathToUser, '?') === false ? '?' : '&') . 'entityType=' . $this->pathToUserEntityType . '&entityId=' . intval($this->pathToUserEntityId);
				}
				break;
			default:
				$classAdditional = '';
		}

		$renderParams = [
			'CLASS_ADDITIONAL' => $classAdditional,
			'PATH_TO_USER' => $pathToUser,
			'USER_ID' => $userId,
			'USER_NAME' => $userName,
		];

		if (
			$type === 'email'
			&& !empty($this->pathToUserEntityType)
			&& !empty($this->pathToUserEntityId)
		)
		{
			$renderParams['TOOLTIP_PARAMS'] = BitrixMainWebJson::encode([
				'entityType' => $this->pathToUserEntityType,
				'entityId' => (int)$this->pathToUserEntityId,
			]);
		}
	}

	$res = $this->render_user($renderParams);

	return $this->defended_tags($res);
}