private function readFileContent(string $file): void
    {
        $autodetect = ini_get('auto_detect_line_endings');
        ini_set('auto_detect_line_endings', '1');
        $lines = file($file, FILE_IGNORE_NEW_LINES | FILE_SKIP_EMPTY_LINES);
        ini_set('auto_detect_line_endings', $autodetect);

        $this->lines = array_merge($this->lines, $lines);
    }