TCPDFBarcode::encode_code39_ext PHP Method

    protected function encode_code39_ext($code)
    {
        $encode = array(chr(0) => '%U', chr(1) => '$A', chr(2) => '$B', chr(3) => '$C', chr(4) => '$D', chr(5) => '$E', chr(6) => '$F', chr(7) => '$G', chr(8) => '$H', chr(9) => '$I', chr(10) => '$J', chr(11) => '£K', chr(12) => '$L', chr(13) => '$M', chr(14) => '$N', chr(15) => '$O', chr(16) => '$P', chr(17) => '$Q', chr(18) => '$R', chr(19) => '$S', chr(20) => '$T', chr(21) => '$U', chr(22) => '$V', chr(23) => '$W', chr(24) => '$X', chr(25) => '$Y', chr(26) => '$Z', chr(27) => '%A', chr(28) => '%B', chr(29) => '%C', chr(30) => '%D', chr(31) => '%E', chr(32) => ' ', chr(33) => '/A', chr(34) => '/B', chr(35) => '/C', chr(36) => '/D', chr(37) => '/E', chr(38) => '/F', chr(39) => '/G', chr(40) => '/H', chr(41) => '/I', chr(42) => '/J', chr(43) => '/K', chr(44) => '/L', chr(45) => '-', chr(46) => '.', chr(47) => '/O', chr(48) => '0', chr(49) => '1', chr(50) => '2', chr(51) => '3', chr(52) => '4', chr(53) => '5', chr(54) => '6', chr(55) => '7', chr(56) => '8', chr(57) => '9', chr(58) => '/Z', chr(59) => '%F', chr(60) => '%G', chr(61) => '%H', chr(62) => '%I', chr(63) => '%J', chr(64) => '%V', chr(65) => 'A', chr(66) => 'B', chr(67) => 'C', chr(68) => 'D', chr(69) => 'E', chr(70) => 'F', chr(71) => 'G', chr(72) => 'H', chr(73) => 'I', chr(74) => 'J', chr(75) => 'K', chr(76) => 'L', chr(77) => 'M', chr(78) => 'N', chr(79) => 'O', chr(80) => 'P', chr(81) => 'Q', chr(82) => 'R', chr(83) => 'S', chr(84) => 'T', chr(85) => 'U', chr(86) => 'V', chr(87) => 'W', chr(88) => 'X', chr(89) => 'Y', chr(90) => 'Z', chr(91) => '%K', chr(92) => '%L', chr(93) => '%M', chr(94) => '%N', chr(95) => '%O', chr(96) => '%W', chr(97) => '+A', chr(98) => '+B', chr(99) => '+C', chr(100) => '+D', chr(101) => '+E', chr(102) => '+F', chr(103) => '+G', chr(104) => '+H', chr(105) => '+I', chr(106) => '+J', chr(107) => '+K', chr(108) => '+L', chr(109) => '+M', chr(110) => '+N', chr(111) => '+O', chr(112) => '+P', chr(113) => '+Q', chr(114) => '+R', chr(115) => '+S', chr(116) => '+T', chr(117) => '+U', chr(118) => '+V', chr(119) => '+W', chr(120) => '+X', chr(121) => '+Y', chr(122) => '+Z', chr(123) => '%P', chr(124) => '%Q', chr(125) => '%R', chr(126) => '%S', chr(127) => '%T');
        $code_ext = '';
        $clen = strlen($code);
        for ($i = 0; $i < $clen; ++$i) {
            if (ord($code[$i]) > 127) {
                return false;
            }
            $code_ext .= $encode[$code[$i]];
        }
        return $code_ext;
    }