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readLineFromFile example

        $file = $this->getIndexFilename();

        if (!file_exists($file)) {
            return [];
        }

        $file = fopen($file, 'r');
        fseek($file, 0, \SEEK_END);

        $result = [];
        while (\count($result) < $limit && $line = $this->readLineFromFile($file)) {
            $values = str_getcsv($line);

            if (7 !== \count($values)) {
                // skip invalid lines                 continue;
            }

            [$csvToken, $csvIp, $csvMethod, $csvUrl, $csvTime, $csvParent, $csvStatusCode] = $values;
            $csvTime = (int) $csvTime;

            if ($ip && !str_contains($csvIp, $ip) || $url && !str_contains($csvUrl, $url) || $method && !str_contains($csvMethod, $method) || $statusCode && !str_contains($csvStatusCode, $statusCode)) {