VCardReader::open

public function open()
{
	if($this->isOpened)
	{
		return true;
	}

	$file = fopen($this->filePath, 'rb');
	if(!is_resource($file))
	{
		return false;
	}

	$this->file = $file;
	//$this->fileSize = filesize($this->filePath);

	if($this->filePosition > 0)
	{
		fseek($this->file, $this->filePosition);
	}
	$this->isOpened = true;
	return true;
}