Barcode Helper
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In my project I needed a helper to generate different types of barcodes
Writes an image file on server of the barcoded data
Supported images :
Supported barcodes :
Usage :
Methods summary :
Core Helper :
Supported images :
- PNG (default)
- GIF
- JPEG
Supported barcodes :
- Code 128 (Set B et C)
- Code 25 standard et code 25 Entrelacé
- Code MSI
- Code 39
- Code 11
- Code KIX
- Code CMC7
- Code PostFix
- Cadabar
- Code UPC / EAN 8 et 13
Usage :
View Template:
$data_to_encode = '1012012,BLAHBLAH01234,1234567891011';
// Generate Barcode data
$barcode->barcode();
$barcode->setType('C128');
$barcode->setCode($data_to_encode);
$barcode->setSize(80,200);
// Generate filename
$random = rand(0,1000000);
$file = 'img/barcode/code_'.$random.'.png';
// Generates image file on server
$barcode->writeBarcodeFile($file);
// Display image
echo $html->image('barcode/code_'.$random.'.png');
Methods summary :
- setCode($code) : specify the data to encode in barcode
- setType($type) : type of barcode : EAN, UPC, C39...
- setSize($h, $w=0, $cz=0) : size of the image
- setText($text='AUTO') : Text under the barcode 'AUTO' -> display the code value '' -> no text displayed 'string' -> display 'string' under the barcode
- hideCodeType() : Hide code type on barcode image (EAN, C128...)
- setColors($fg, $bg=0) : foreground and background colors
- setFiletype($ft) : filetype to generate : PNG (default), GIF, JPG
Core Helper :
Helper Class:
<?php
/**
* Barcode Helper class file.
*
* Simplifies creating charts with the google charts api.
*
* Copyright (c) 2010 Remi DUDREUIL
*
* Licensed under The MIT License
* Redistributions of files must retain the above copyright notice.
*
* @filesource
* @copyright Copyright (c) 2010 Remi DUDREUIL
* @link http://net.productions.free.fr
* @license http://www.opensource.org/licenses/mit-license.php The MIT License
*/
class BarcodeHelper extends AppHelper
{
/**
* ***** Définition des variables *****
*/
var $CODE;
var $FULLCODE;
var $TYPE;
var $HEIGHT;
var $WIDTH;
var $CODEWIDTH;
var $CALMZONE;
var $HR;
var $SHOWTYPE;
var $BACKGROUND;
var $FOREGROUND;
var $FILETYPE;
var $ENCODED;
var $IH = NULL;
/**
* Définition des symbologies
*/
var $C128 = array(
0 => "11011001100", 1 => "11001101100", 2 => "11001100110",
3 => "10010011000", 4 => "10010001100", 5 => "10001001100",
6 => "10011001000", 7 => "10011000100", 8 => "10001100100",
9 => "11001001000", 10 => "11001000100", 11 => "11000100100",
12 => "10110011100", 13 => "10011011100", 14 => "10011001110",
15 => "10111001100", 16 => "10011101100", 17 => "10011100110",
18 => "11001110010", 19 => "11001011100", 20 => "11001001110",
21 => "11011100100", 22 => "11001110100", 23 => "11101101110",
24 => "11101001100", 25 => "11100101100", 26 => "11100100110",
27 => "11101100100", 28 => "11100110100", 29 => "11100110010",
30 => "11011011000", 31 => "11011000110", 32 => "11000110110",
33 => "10100011000", 34 => "10001011000", 35 => "10001000110",
36 => "10110001000", 37 => "10001101000", 38 => "10001100010",
39 => "11010001000", 40 => "11000101000", 41 => "11000100010",
42 => "10110111000", 43 => "10110001110", 44 => "10001101110",
45 => "10111011000", 46 => "10111000110", 47 => "10001110110",
48 => "11101110110", 49 => "11010001110", 50 => "11000101110",
51 => "11011101000", 52 => "11011100010", 53 => "11011101110",
54 => "11101011000", 55 => "11101000110", 56 => "11100010110",
57 => "11101101000", 58 => "11101100010", 59 => "11100011010",
60 => "11101111010", 61 => "11001000010", 62 => "11110001010",
63 => "10100110000", 64 => "10100001100", 65 => "10010110000",
66 => "10010000110", 67 => "10000101100", 68 => "10000100110",
69 => "10110010000", 70 => "10110000100", 71 => "10011010000",
72 => "10011000010", 73 => "10000110100", 74 => "10000110010",
75 => "11000010010", 76 => "11001010000", 77 => "11110111010",
78 => "11000010100", 79 => "10001111010", 80 => "10100111100",
81 => "10010111100", 82 => "10010011110", 83 => "10111100100",
84 => "10011110100", 85 => "10011110010", 86 => "11110100100",
87 => "11110010100", 88 => "11110010010", 89 => "11011011110",
90 => "11011110110", 91 => "11110110110", 92 => "10101111000",
93 => "10100011110", 94 => "10001011110", 95 => "10111101000",
96 => "10111100010", 97 => "11110101000", 98 => "11110100010",
99 => "10111011110", // 99 et 'c' sont identiques ne nous sert que pour le checksum
100 => "10111101110", // 100 et 'b' sont identiques ne nous sert que pour le checksum
101 => "11101011110", // 101 et 'a' sont identiques ne nous sert que pour le checksum
102 => "11110101110", // 102 correspond à FNC1 ne nous sert que pour le checksum
'c' => "10111011110", 'b' => "10111101110", 'a' => "11101011110",
'A' => "11010000100", 'B' => "11010010000", 'C' => "11010011100",
'S' => "1100011101011"
);
var $C25 = array(
0 => "11331", 1 => "31113",
2 => "13113", 3 => "33111",
4 => "11313", 5 => "31311",
6 => "13311", 7 => "11133",
8 => "31131", 9 => "13131",
'D' => "111011101", 'F' => "111010111", // Code 2 parmi 5
'd' => "1010", 'f' => "11101" // Code 2/5 entrelacé
);
var $C39 = array(
'0' => "101001101101", '1' => "110100101011", '2' => "101100101011",
'3' => "110110010101", '4' => "101001101011", '5' => "110100110101",
'6' => "101100110101", '7' => "101001011011", '8' => "110100101101",
'9' => "101100101101", 'A' => "110101001011", 'B' => "101101001011",
'C' => "110110100101", 'D' => "101011001011", 'E' => "110101100101",
'F' => "101101100101", 'G' => "101010011011", 'H' => "110101001101",
'I' => "101101001101", 'J' => "101011001101", 'K' => "110101010011",
'L' => "101101010011", 'M' => "110110101001", 'N' => "101011010011",
'O' => "110101101001", 'P' => "101101101001", 'Q' => "101010110011",
'R' => "110101011001", 'S' => "101101011001", 'T' => "101011011001",
'U' => "110010101011", 'V' => "100110101011", 'W' => "110011010101",
'X' => "100101101011", 'Y' => "110010110101", 'Z' => "100110110101",
'-' => "100101011011", '.' => "110010101101", ' ' => "100110101101",
'$' => "100100100101", '/' => "100100101001", '+' => "100101001001",
'%' => "101001001001", '*' => "100101101101"
);
var $codabar = array(
'0' => "101010011", '1' => "101011001", '2' => "101001011",
'3' => "110010101", '4' => "101101001", '5' => "110101001",
'6' => "100101011", '7' => "100101101", '8' => "100110101",
'9' => "110100101", '-' => "101001101", '$' => "101100101",
':' => "1101011011", '/' => "1101101011", '.' => "1101101101",
'+' => "1011011011", 'A' => "1011001001", 'B' => "1010010011",
'C' => "1001001011", 'D' => "1010011001"
);
var $MSI = array(
0 => "100100100100",
1 => "100100100110",
2 => "100100110100",
3 => "100100110110",
4 => "100110100100",
5 => "100110100110",
6 => "100110110100",
7 => "100110110110",
8 => "110100100100",
9 => "110100100110",
'D' => "110",
'F' => "1001"
);
var $C11 = array(
'0' => "101011",
'1' => "1101011",
'2' => "1001011",
'3' => "1100101",
'4' => "1011011",
'5' => "1101101",
'6' => "1001101",
'7' => "1010011",
'8' => "1101001",
'9' => "110101",
'-' => "101101",
'S' => "1011001"
);
var $postnet = array(
'0' => "11000",
'1' => "00011",
'2' => "00101",
'3' => "00110",
'4' => "01001",
'5' => "01010",
'6' => "01100",
'7' => "10001",
'8' => "10010",
'9' => "10100"
);
var $kix = array( //0=haut, 1=bas, 2=milieu, 3=toute la hauteur
'0' => '2233', '1' => '2103', '2' => '2130',
'3' => '1203', '4' => '1230', '5' => '1100',
'6' => '2013', '7' => '2323', '8' => '2310',
'9' => '1023', 'A' => '1010', 'B' => '1320',
'C' => '2031', 'D' => '2301', 'E' => '2332',
'F' => '1001', 'G' => '1032', 'H' => '1302',
'I' => '0213', 'J' => '0123', 'K' => '0110',
'L' => '3223', '2' => '3210', 'N' => '3120',
'O' => '0231', 'P' => '0101', 'Q' => '0132',
'R' => '3201', 'S' => '3232', 'T' => '3102',
'U' => '0011', 'V' => '0321', 'W' => '0312',
'X' => '3021', 'Y' => '3021', 'Z' => '3322'
);
var $CMC7 = array(
0 => "0,3-0,22|2,1-2,24|4,0-4,8|4,18-4,25|8,0-8,8|8,18-8,25|12,0-12,8|12,18-12,25|14,1-14,24|16,3-16,22",
1 => "0,5-0,12|0,17-0,25|4,3-4,10|4,17-4,25|6,2-6,9|6,17-6,25|8,1-8,25|10,0-10,25|14,14-14,25|16,14-16,25",
2 => "0,2-0,9|0,17-0,25|2,0-2,9|2,16-2,25|6,0-6,6|6,13-6,25|10,0-10,6|10,11-10,17|10,20-10,25|12,0-12,6|12,10-12,16|12,20-12,25|14,0-14,14|14,20-14,25|16,2-16,13|16,20-16,25",
3 => "0,2-0,9|0,17-0,23|4,0-4,9|4,17-4,25|6,0-6,8|6,18-6,25|10,0-10,7|10,10-10,16|10,19-10,25|12,0-12,7|12,10-12,16|12,19-12,25|14,0-14,25|16,2-16,12|16,14-16,23",
4 => "0,6-0,21|4,4-4,21|6,3-6,11|6,16-6,21|8,2-8,10|8,16-8,21|12,0-12,8|12,15-12,25|14,0-14,8|14,15-14,25|16,0-16,8|16,15-16,25",
5 => "0,0-0,14|0,19-0,25|2,0-2,14|2,19-2,25|4,0-4,6|4,9-4,14|4,19-4,25|6,0-6,6|6,9-6,14|6,19-6,25|10,0-10,6|10,9-10,14|10,19-10,25|14,0-14,6|14,9-14,25|16,0-16,6|16,11-16,23",
6 => "0,2-0,23|2,0-2,25|4,0-4,6|4,10-4,15|4,19-4,25|8,0-8,6|8,10-8,15|8,19-8,25|10,0-10,6|10,10-10,15|10,19-10,25|14,0-14,7|14,10-14,25|16,2-16,7|16,12-16,23",
7 => "0,0-0,9|0,19-0,25|4,0-4,6|4,16-4,25|8,0-8,6|8,12-8,21|10,0-10,6|10,9-10,19|12,0-12,17|14,0-14,15|16,0-16,13",
8 => "0,2-0,10|0,15-0,23|2,0-2,11|2,14-2,25|6,0-6,6|6,10-6,15|6,19-6,25|8,0-8,6|8,10-8,15|8,19-8,25|10,0-10,6|10,10-10,15|10,19-10,25|14,0-14,11|14,14-14,25|16,2-16,10|16,15-16,23",
9 => "0,2-0,13|0,18-0,23|2,0-2,15|2,18-2,25|6,0-6,6|6,10-6,15|6,19-6,25|8,0-8,6|8,10-8,15|8,19-8,25|12,0-12,6|12,10-12,15|12,19-12,25|14,0-14,25|16,2-16,23",
'A' => "0,4-0,15|0,19-0,24|2,4-2,15|2,19-2,24|4,4-4,15|4,19-4,24|8,4-8,15|8,19-8,24|10,4-10,15|10,19-10,24|12,4-12,15|12,19-12,24|16,4-16,15|16,19-16,24",
'B' => "0,9-0,24|4,7-4,22|6,6-6,21|8,5-8,20|10,4-10,19|12,3-12,18|16,1-16,16",
'C' => "0,4-0,12|0,16-0,24|2,4-2,12|2,16-2,24|4,4-4,12|4,16-4,24|6,4-6,12|6,16-6,24|10,7-10,21|12,7-12,21|16,7-16,21",
'D' => "0,10-0,24|2,10-2,24|6,10-6,24|8,10-8,24|10,4-10,24|12,4-12,24|16,4-16,24",
'E' => "0,7-0,12|0,16-0,25|2,5-2,23|4,3-4,21|6,1-6,19|8,0-8,18|12,3-12,21|16,7-16,12|16,16-16,25",
);
var $EANbars = array('A' => array(
0 => "0001101", 1 => "0011001",
2 => "0010011", 3 => "0111101",
4 => "0100011", 5 => "0110001",
6 => "0101111", 7 => "0111011",
8 => "0110111", 9 => "0001011"
),
'B' => array(
0 => "0100111", 1 => "0110011",
2 => "0011011", 3 => "0100001",
4 => "0011101", 5 => "0111001",
6 => "0000101", 7 => "0010001",
8 => "0001001", 9 => "0010111"
),
'C' => array(
0 => "1110010", 1 => "1100110",
2 => "1101100", 3 => "1000010",
4 => "1011100", 5 => "1001110",
6 => "1010000", 7 => "1000100",
8 => "1001000", 9 => "1110100"
)
);
var $EANparity = array(
0 => array('A','A','A','A','A','A'),
1 => array('A','A','B','A','B','B'),
2 => array('A','A','B','B','A','B'),
3 => array('A','A','B','B','B','A'),
4 => array('A','B','A','A','B','B'),
5 => array('A','B','B','A','A','B'),
6 => array('A','B','B','B','A','A'),
7 => array('A','B','A','B','A','B'),
8 => array('A','B','A','B','B','A'),
9 => array('A','B','B','A','B','A')
);
/**
* Constructeur // est appelé automatiquement à l'instanciation de l'objet
*/
function barcode()
{
$this->CODE = '';
$this->FULLCODE = 'NO CODE SET';
$this->TYPE = 'ERR';
$this->HEIGHT = 15;
$this->WIDTH = 0;
$this->CALMZONE = 10;
$this->HR = 'AUTO';
$this->SHOWTYPE = 'Y';
$this->FOREGROUND = hexdec('#000000');
$this->BACKGROUND = hexdec('#FFFFFF');
$this->FILETYPE = 'PNG';
$this->ENCODED = '';
// detruire eventuellement l'image existante
if ($this->IH) imagedestroy($this->IH);
$this->IH = NULL;
}
/**
* Set Barcode Type
*/
function setType($type)
{
$this->TYPE = $type;
}
/**
* Set Barcode String
*/
function setCode($code)
{
$this->CODE = $code;
}
/**
* Set Image Height and Extra-Width
*/
function setSize($height, $width=0, $calmZone=0)
{
$this->HEIGHT = ($height > 15 ? $height : 15);
$this->WIDTH = ($width > 0 ? $width : 0);
$this->CALMZONE = ($calmZone > 10 ? $calmZone : 10);
}
/**
* Set the Printed Text under Bars
*/
function setText($text='AUTO')
{
$this->HR = $text;
}
/**
* Disable CodeType printing
*/
function hideCodeType()
{
$this->SHOWTYPE = 'N';
}
/**
* Set Colors
*/
function setColors($fg, $bg='#FFFFFF')
{
$this->FOREGROUND = hexdec($fg);
$this->BACKGROUND = hexdec($bg);
}
/**
* Set File Type (PNG, GIF or JPG)
*/
function setFiletype($ft='PNG')
{
$ft = strtoupper($ft);
$this->FILETYPE = ($ft == 'GIF' ? 'GIF' : ($ft == 'JPG' ? 'JPG' : 'PNG'));
}
/**
* Vérification du Code
*
* calcul ou vérification du Checksum
*/
function checkCode()
{
switch( $this->TYPE ) {
case "C128C" :
if (preg_match("/^[0-9]{2,48}$/", $this->CODE))
{
$tmp = strlen($this->CODE);
if (($tmp%2)!=0) $this->FULLCODE = '0'.$this->CODE;
else $this->FULLCODE = $this->CODE;
}
else
{
$this->TYPE = "ERR";
$this->FULLCODE = "CODE 128C REQUIRES DIGITS ONLY";
break;
}
case "C128" :
$carok = true;
$long = strlen( $this->CODE );
$i = 0;
while (($carok) && ($i<$long))
{
$tmp = ord( $this->CODE{$i} ) ;
if (($tmp < 32) OR ($tmp > 126)) $carok = false;
$i++;
}
if ($carok) $this->FULLCODE = $this->CODE;
else
{
$this->TYPE = "ERR";
$this->FULLCODE = "UNAUTHORIZED CHARS IN 128 CODE";
}
break;
case "UPC" :
$this->CODE = '0'.$this->CODE;
$this->TYPE = 'EAN';
case "EAN" :
$long = strlen( $this->CODE ) ;
$factor = 3;
$checksum = 0;
if (preg_match("/^[0-9]{8}$/", $this->CODE) OR preg_match("/^[0-9]{13}$/", $this->CODE))
{
for ($index = ($long - 1); $index > 0; $index--)
{
$checksum += intval($this->CODE{$index-1}) * $factor ;
$factor = 4 - $factor ;
}
$cc = ( (1000 - $checksum) % 10 ) ;
if ( substr( $this->CODE, -1, 1) != $cc )
{
$this->TYPE = "ERR";
$this->FULLCODE = "CHECKSUM ERROR IN EAN/UPC CODE";
}
else $this->FULLCODE = $this->CODE;
}
elseif (preg_match("/^[0-9]{7}$/", $this->CODE) OR preg_match("/^[0-9]{12}$/", $this->CODE))
{
for ($index = $long; $index > 0; $index--) {
$checksum += intval($this->CODE{$index-1}) * $factor ;
$factor = 4 - $factor ;
}
$cc = ( ( 1000 - $checksum ) % 10 ) ;
$this->FULLCODE = $this->CODE.$cc ;
}
else
{
$this->TYPE = "ERR";
$this->FULLCODE = "THIS CODE IS NOT EAN/UPC TYPE";
}
break;
case "C25I" :
$long = strlen($this->CODE);
if(($long%2)==0) $this->CODE = '0'.$this->CODE;
case "C25" :
if (preg_match("/^[0-9]{1,48}$/", $this->CODE))
{
$checksum = 0;
$factor = 3;
$long = strlen($this->CODE);
for ($i = $long; $i > 0; $i--) {
$checksum += intval($this->CODE{$i-1}) * $factor;
$factor = 4-$factor;
}
$checksum = 10 - ($checksum % 10);
if ($checksum == 10) $checksum = 0;
$this->FULLCODE = $this->CODE.$checksum;
}
else
{
$this->TYPE = "ERR";
$this->FULLCODE = "CODE C25 REQUIRES DIGITS ONLY";
}
break;
case "C39" :
if (preg_match("/^[0-9A-Z\-\.\$\/+% ]{1,48}$/i", $this->CODE))
{
$this->FULLCODE = '*'.$this->CODE.'*';
}
else
{
$this->TYPE = "ERR";
$this->FULLCODE = "UNAUTHORIZED CHARS IN CODE 39";
}
break;
case "CODABAR" :
if (!preg_match("/^(A|B|C|D)[0-9\-\$:\/\.\+]{1,48}(A|B|C|D)$/i", $this->CODE))
{
$this->TYPE = "ERR";
$this->FULLCODE = "CODABAR START/STOP : ABCD";
}
else $this->FULLCODE = $this->CODE;
break;
case "MSI" :
if (preg_match("/^[0-9]{1,48}$/", $this->CODE))
{
$checksum = 0;
$factor = 1;
$tmp = strlen($this->CODE);
for ($i = 0; $i < $tmp; $i++) {
$checksum += intval($this->CODE{$i}) * $factor;
$factor++;
if ($factor > 10) $factor = 1;
}
$checksum = (1000 - $checksum) % 10;
$this->FULLCODE = $this->CODE.$checksum;
}
else
{
$this->TYPE = "ERR";
$this->FULLCODE = "CODE MSI REQUIRES DIGITS ONLY";
}
break;
case "C11" :
if (preg_match("/^[0-9\-]{1,48}$/", $this->CODE))
{
$checksum = 0;
$factor = 1;
$tmp = strlen($this->CODE);
for ($i = $tmp; $i > 0; $i--) {
$tmp = $this->CODE{$i-1};
if ($tmp == "-") $tmp = 10;
else $tmp = intval($tmp);
$checksum += ($tmp * $factor);
$factor++;
if ($factor > 10) $factor=1;
}
$checksum = $checksum % 11;
if ($checksum == 10) $this->FULLCODE = $this->CODE . "-";
else $this->FULLCODE .= $this->CODE.$checksum;
}
else
{
$this->TYPE = "ERR";
$this->FULLCODE = "UNAUTHORIZED CHARS IN CODE 11";
}
break;
case "POSTNET" :
if (preg_match("/^[0-9]{5}$/", $this->CODE) OR preg_match("/^[0-9]{9}$/", $this->CODE) OR preg_match("/^[0-9]{11}$/", $this->CODE))
{
$checksum = 0;
$tmp = strlen($this->CODE);
for ($i = $tmp; $i > 0; $i--) {
$checksum += intval($this->CODE{$i-1});
}
$checksum = 10 - ($checksum % 10);
if($checksum == 10) $checksum = 0;
$this->FULLCODE = $this->CODE.$checksum;
}
else
{
$this->TYPE = "ERR";
$this->FULLCODE = "POSTNET MUST BE 5/9/11 DIGITS";
}
break;
case "KIX" :
if (preg_match("/^[A-Z0-9]{1,50}$/", $this->CODE))
{
/* ***** LE CODE KIX n'a pas de checksum
$checksum = 0;
$tmp = strlen("$this->CODE");
for($i=$tmp-1; $i>=0; $i--) {
$checksum += intval(substr($this->CODE,$i,1));
}
$checksum = 10-($checksum%10);
if($checksum==10) $checksum=0;
$this->CODE .= "$checksum";
*/
$this->FULLCODE = $this->CODE;
}
else
{
$this->TYPE = "ERR";
$this->FULLCODE = "UNAUTHORIZED CHARS IN KIX CODE";
}
break;
case "CMC7" :
if(!preg_match("/^[0-9A-E]{1,48}$/", $this->CODE)) {
$this->TYPE = "ERR";
$this->FULLCODE = "CMC7 MUST BE NUMERIC or ABCDE";
}
else $this->FULLCODE = $this->CODE;
break;
default :
$this->TYPE = "ERR";
$this->FULLCODE = "UNKWOWN BARCODE TYPE";
break;
}
}
/**
* Encodage
*
* Encode des symboles (a-Z, 0-9, ...) vers des barres
*/
function encode()
{
settype($this->FULLCODE, 'string');
$lencode = strlen($this->FULLCODE);
$encodedString = '';
// Copie de la chaine dans un tableau
$a_tmp = array();
for($i = 0; $i < $lencode ; $i++) $a_tmp[$i] = $this->FULLCODE{$i};
switch( $this->TYPE ) {
case "EAN" :
case "UPC" :
if ($lencode == 8)
{
$encodedString = '101'; //Premier séparateur (101)
for ($i = 0; $i < 4; $i++) $encodedString .= $this->EANbars['A'][$a_tmp[$i]]; //Codage partie gauche (tous de classe A)
$encodedString .= '01010'; //Séparateur central (01010) //Codage partie droite (tous de classe C)
for ($i = 4; $i < 8; $i++) $encodedString .= $this->EANbars['C'][$a_tmp[$i]];
$encodedString .= '101'; //Dernier séparateur (101)
}
else
{
$parity = $this->EANparity[$a_tmp[0]]; //On récupère la classe de codage de la partie qauche
$encodedString = '101'; //Premier séparateur (101)
for ($i = 1; $i < 7; $i++) $encodedString .= $this->EANbars[$parity[$i-1]][$a_tmp[$i]]; //Codage partie gauche
$encodedString .= '01010'; //Séparateur central (01010) //Codage partie droite (tous de classe C)
for ($i = 7; $i < 13; $i++) $encodedString .= $this->EANbars['C'][$a_tmp[$i]];
$encodedString .= '101'; //Dernier séparateur (101)
}
break;
case "C128C" :
$encodedString = $this->C128['C']; //Start
$checksum = 105 ;
$j = 1 ;
for ($i = 0; $i < $lencode; $i += 2)
{
$tmp = intval(substr($this->FULLCODE, $i, 2)) ;
$checksum += ( $j++ * $tmp ) ;
$encodedString .= $this->C128[$tmp];
}
$checksum %= 103 ;
$encodedString .= $this->C128[$checksum];
$encodedString .= $this->C128['S']; //Stop
break;
case "C128" :
$encodedString = $this->C128['B']; //Start
$checksum = 104 ;
$j = 1 ;
for ($i = 0; $i < $lencode; $i++)
{
$tmp = ord($a_tmp[$i]) - 32 ;
$checksum += ( $j++ * $tmp ) ;
$encodedString .= $this->C128[$tmp];
}
$checksum %= 103 ;
$encodedString .= $this->C128[$checksum];
$encodedString .= $this->C128['S']; //Stop
break;
case "C25" :
$encodedString = $this->C25['D']."0"; //Start
for ($i = 0; $i < $lencode; $i++)
{
$num = intval($a_tmp[$i]) ;
$tmp = $this->C25[$num];
for ($j = 0; $j < 5; $j++)
{
$tmp2 = intval(substr($tmp,$j,1)) ;
for ($k = 1; $k <= $tmp2; $k++) $encodedString .= "1";
$encodedString .= "0";
}
}
$encodedString .= $this->C25['F']; //Stop
break;
case "C25I" :
$encodedString = $this->C25['d']; //Start
$checksum = 0;
for ($i = 0; $i < $lencode; $i += 2)
{
$num1 = intval($a_tmp[$i]) ;
$num2 = intval($a_tmp[$i+1]) ;
$checksum += ($num1+$num2);
$tmp1 = $this->C25[$num1];
$tmp2 = $this->C25[$num2];
for ($j = 0; $j < 5; $j++)
{
$t1 = intval(substr($tmp1, $j, 1)) ;
$t2 = intval(substr($tmp2, $j, 1)) ;
for ($k = 1; $k <= $t1; $k++) $encodedString .= "1";
for ($k = 1; $k <= $t2; $k++) $encodedString .= "0";
}
}
$encodedString .= $this->C25['f']; //Stop
break;
case "C39" :
for ($i = 0; $i < $lencode; $i++)$encodedString .= $this->C39[$a_tmp[$i]] . "0";
$encodedString = substr($encodedString, 0, -1);
break;
case "CODABAR" :
for ($i = 0; $i < $lencode; $i++) $encodedString .= $this->codabar[$a_tmp[$i]] . "0";
$encodedString = substr($encodedString, 0, -1);
break;
case "MSI" :
$encodedString = $this->MSI['D']; //Start
for ($i = 0; $i < $lencode; $i++) $encodedString .= $this->MSI[intval($a_tmp[$i])];
$encodedString .= $this->MSI['F']; //Stop
break;
case "C11" :
$encodedString = $this->C11['S']."0"; //Start
for ($i = 0; $i < $lencode; $i++) $encodedString .= $this->C11[$a_tmp[$i]]."0";
$encodedString .= $this->C11['S']; //Stop
break;
case "POSTNET" :
$encodedString = '1'; //Start
for ($i = 0; $i < $lencode; $i++) $encodedString .= $this->postnet[$a_tmp[$i]];
$encodedString .= '1'; //Stop
$this->CODEWIDTH = ( strlen($encodedString) * 4 ) - 4;
if( $this->HR != '' ) $this->HEIGHT = 32;
else $this->HEIGHT = 22;
break;
case "KIX" :
// $encodedString = "31"; //Start
for ($i = 0; $i < $lencode; $i++) $encodedString .= $this->kix[$a_tmp[$i]];
// $encodedString .= "32"; //Stop
$this->CODEWIDTH = ( strlen($encodedString) * 4 ) - 4;
if( $this->HR != '' ) $this->HEIGHT = 32;
else $this->HEIGHT = 22;
break;
case "CMC7" :
$encodedString = $this->FULLCODE;
$this->CODEWIDTH = ( $lencode * 24 ) - 8;
$this->HEIGHT = 35;
break;
case "ERR" :
$encodedString = '';
$this->CODEWIDTH = (imagefontwidth(2) * $lencode);
$this->HEIGHT = max( $this->HEIGHT, 36 );
break;
}
$nb_elem = strlen($encodedString);
$this->CODEWIDTH = max( $this->CODEWIDTH, $nb_elem );
$this->WIDTH = max( $this->WIDTH, $this->CODEWIDTH + ($this->CALMZONE*2) );
$this->ENCODED = $encodedString;
/**
* Création de l'image du code
*/
//Initialisation de l'image
$txtPosX = $posX = intval(($this->WIDTH - $this->CODEWIDTH)/2); // position X
$posY = 0; // position Y
$intL = 1; // largeur de la barre
// detruire eventuellement l'image existante
if ($this->IH) imagedestroy($this->IH);
$this->IH = imagecreate($this->WIDTH, $this->HEIGHT);
// colors
$color[0] = ImageColorAllocate($this->IH, 0xFF & ($this->BACKGROUND >> 0x10), 0xFF & ($this->BACKGROUND >> 0x8), 0xFF & $this->BACKGROUND);
$color[1] = ImageColorAllocate($this->IH, 0xFF & ($this->FOREGROUND >> 0x10), 0xFF & ($this->FOREGROUND >> 0x8), 0xFF & $this->FOREGROUND);
$color[2] = ImageColorAllocate($this->IH, 160,160,160); // greyed
imagefilledrectangle($this->IH, 0, 0, $this->WIDTH, $this->HEIGHT, $color[0]);
// Gravure du code
for ($i = 0; $i < $nb_elem; $i++)
{
// Hauteur des barres dans l'image
$intH = $this->HEIGHT;
if( $this->HR != '' )
{
switch ($this->TYPE)
{
case "EAN" :
case "UPC" :
if($i<=2 OR $i>=($nb_elem-3) OR ($i>=($nb_elem/2)-2 AND $i<=($nb_elem/2)+2)) $intH-=6; else $intH-=11;
break;
default :
if($i>0 AND $i<($nb_elem-1)) $intH-=11;
}
}
// Gravure des barres
$fill_color = $this->ENCODED{$i};
switch ($this->TYPE)
{
case "POSTNET" :
if($fill_color == "1") imagefilledrectangle($this->IH, $posX, ($posY+1), $posX+1, ($posY+20), $color[1]);
else imagefilledrectangle($this->IH, $posX, ($posY+12), $posX+1, ($posY+20), $color[1]);
$intL = 4 ;
break;
case "KIX" :
if($fill_color == "0") imagefilledrectangle($this->IH, $posX, ($posY+1), $posX+1, ($posY+13), $color[1]);
elseif($fill_color == "1") imagefilledrectangle($this->IH, $posX, ($posY+7), $posX+1, ($posY+19), $color[1]);
elseif($fill_color == "2") imagefilledrectangle($this->IH, $posX, ($posY+7), $posX+1, ($posY+13), $color[1]);
else imagefilledrectangle($this->IH, $posX, ($posY+1), $posX+1, ($posY+19), $color[1]);
$intL = 4 ;
break;
case "CMC7" :
$tmp = $this->CMC7[$fill_color];
$coord = explode( "|", $tmp );
for ($j = 0; $j < sizeof($coord); $j++)
{
$pts = explode( "-", $coord[$j] );
$deb = explode( ",", $pts[0] );
$X1 = $deb[0] + $posX ;
$Y1 = $deb[1] + 5 ;
$fin = explode( ",", $pts[1] );
$X2 = $fin[0] + $posX ;
$Y2 = $fin[1] + 5 ;
imagefilledrectangle($this->IH, $X1, $Y1, $X2, $Y2, $color[1]);
}
$intL = 24 ;
break;
default :
if($fill_color == "1") imagefilledrectangle($this->IH, $posX, $posY, $posX, ($posY+$intH), $color[1]);
}
//Deplacement du pointeur
$posX += $intL;
}
// Ajout du texte
$ifw = imagefontwidth(3);
$ifh = imagefontheight(3) - 1;
$text = ($this->HR == 'AUTO' ? $this->CODE : $this->HR);
switch ($this->TYPE)
{
case "ERR" :
$ifw = imagefontwidth(3);
imagestring($this->IH, 3, floor( (($this->WIDTH)-($ifw * 7)) / 2 ), 1, "ERROR :", $color[1]);
imagestring($this->IH, 2, 10, 13, $this->FULLCODE, $color[1]);
$ifw = imagefontwidth(1);
imagestring($this->IH, 1, ($this->WIDTH)-($ifw * 9)-2, $this->HEIGHT - $ifh, "", $color[2]);
break;
case "EAN" :
if ($text != '') if((strlen($this->FULLCODE) > 10) && ($this->FULLCODE{0} > 0)) imagestring($this->IH, 3, $txtPosX-7, $this->HEIGHT - $ifh, substr($this->FULLCODE,-13,1), $color[1]);
case "UPC" :
if ($text != '')
{
if(strlen($this->FULLCODE) > 10) {
imagestring($this->IH, 3, $txtPosX+4, $this->HEIGHT - $ifh, substr($this->FULLCODE,1,6), $color[1]);
imagestring($this->IH, 3, $txtPosX+50, $this->HEIGHT - $ifh, substr($this->FULLCODE,7,6), $color[1]);
} else {
imagestring($this->IH, 3, $txtPosX+4, $this->HEIGHT - $ifh, substr($this->FULLCODE,0,4), $color[1]);
imagestring($this->IH, 3, $txtPosX+36, $this->HEIGHT - $ifh, substr($this->FULLCODE,4,4), $color[1]);
}
}
break;
case "CMC7" :
break;
default :
if ($text != '') imagestring($this->IH, 3, intval((($this->WIDTH)-($ifw * strlen($text)))/2)+1, $this->HEIGHT - $ifh, $this->CODE, $color[1]);
}
$ifw = imagefontwidth(1) * 9;
if ((rand(0,50)<1) AND ($this->HEIGHT >= $ifw)) imagestringup($this->IH, 1, $nb_elem + 12, $this->HEIGHT - 2, "", $color[2]);
// impression du type de code (si demandé)
if ($this->SHOWTYPE == 'Y')
{
if (($this->TYPE == "EAN") AND (strlen($this->FULLCODE) > 10) AND ($this->FULLCODE{0} > 0) AND ($text != ''))
{
imagestringup($this->IH, 1, 0, $this->HEIGHT - 12, $this->TYPE, $color[2]);
}
elseif ($this->TYPE == "POSTNET")
{
imagestringup($this->IH, 1, 0, $this->HEIGHT - 2, "POST", $color[2]);
}
elseif ($this->TYPE != "ERR")
{
imagestringup($this->IH, 1, 0, $this->HEIGHT - 2, $this->TYPE, $color[2]);
}
}
}
/**
* Show Image
*/
function showBarcodeImage()
{
$this->checkCode();
$this->encode();
if ($this->FILETYPE == 'GIF')
{
Header( "Content-type: image/gif");
imagegif($this->IH);
}
elseif ($this->FILETYPE == 'JPG')
{
Header( "Content-type: image/jpeg");
imagejpeg($this->IH);
}
else
{
Header( "Content-type: image/png");
imagepng($this->IH);
}
}
/**
* Save Image
*/
function writeBarcodeFile($file)
{
$this->checkCode();
$this->encode();
if ($this->FILETYPE == 'GIF') imagegif($this->IH, $file);
elseif ($this->FILETYPE == 'JPG') imagejpeg($this->IH, $file);
else imagepng($this->IH, $file);
}
}
?>
Thanks ...
Hi Rems,
Great article, thanks!
One comment though. When I use the Interleaved 25 code, it adds a 0 when you have an even number of digits, producing a code with an odd number of digits. Code interleaved 25 should have an even number of digits.
I've changed some lines in your code to fix this problem:
line 402: here you check if its an even number, I've changed so it check for an odd number
if(($long%2)!=0) $this->CODE = '0'.$this->CODE;
line 645: an offset problem produced by my previous change
for ($i = 0; $i < ($lencode-1); $i += 2)
I'm using a custom checksum algorithm that I include in of the digits of the code.
Again, great article and thanks!
Guille
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