Method asciiArray

lang/php/lib/AvroDebug.php:148–230

* @param string $str * @param string $format one of 'ctrl', 'hex', or 'dec' for control, * hexadecimal, or decimal format for bytes. * - ctrl: ASCII control characters represented as text. * For example, the null byte is represented as 'NUL'. * Visible ASCII characters represent themselves, and * others are represented as a decimal ('%03d') * - hex: bytes represe

($str, $format = 'ctrl')

     * @throws AvroException
     */
    public static function asciiArray($str, $format = 'ctrl')
    {
        if (!in_array($format, ['ctrl', 'hex', 'dec'])) {
            throw new AvroException('Unrecognized format specifier');
        }

        $ctrl_chars = array(
            'NUL',
            'SOH',
            'STX',
            'ETX',
            'EOT',
            'ENQ',
            'ACK',
            'BEL',
            'BS',
            'HT',
            'LF',
            'VT',
            'FF',
            'CR',
            'SO',
            'SI',
            'DLE',
            'DC1',
            'DC2',
            'DC3',
            'DC4',
            'NAK',
            'SYN',
            'ETB',
            'CAN',
            'EM',
            'SUB',
            'ESC',
            'FS',
            'GS',
            'RS',
            'US'
        );
        $x = array();
        foreach (str_split($str) as $b) {
            $db = ord($b);
            if ($db < 32) {
                switch ($format) {
                    case 'ctrl':
                        $x[] = str_pad($ctrl_chars[$db], 3, ' ', STR_PAD_LEFT);
                        break;
                    case 'hex':
                        $x[] = sprintf("x%02X", $db);
                        break;
                    case 'dec':
                        $x[] = str_pad($db, 3, '0', STR_PAD_LEFT);
                        break;
                }
            } else {
                if ($db < 127) {
                    $x[] = "  $b";