Sniffer::text_or_binary(): string

106    public function text_or_binary()107    {108        $body = $this->file->get_body_content();109 110        if (substr($body, 0, 2) === "\xFE\xFF"111            || substr($body, 0, 2) === "\xFF\xFE"112            || substr($body, 0, 4) === "\x00\x00\xFE\xFF"113            || substr($body, 0, 3) === "\xEF\xBB\xBF") {114            return 'text/plain';115        } elseif (preg_match('/[\x00-\x08\x0E-\x1A\x1C-\x1F]/', $body)) {116            return 'application/octet-stream';117        }118 119        return 'text/plain';120    }