Sniffer::text_or_binary(): string

131    public function text_or_binary()132    {133        if (substr($this->file->body, 0, 2) === "\xFE\xFF"134            || substr($this->file->body, 0, 2) === "\xFF\xFE"135            || substr($this->file->body, 0, 4) === "\x00\x00\xFE\xFF"136            || substr($this->file->body, 0, 3) === "\xEF\xBB\xBF") {137            return 'text/plain';138        } elseif (preg_match('/[\x00-\x08\x0E-\x1A\x1C-\x1F]/', $this->file->body)) {139            return 'application/octet-stream';140        }141 142        return 'text/plain';143    }