Podgląd pliku: / books / includes / generate_code39.php
<?php
/*****************************************************
* System biblioteczny *
*****************************************************
* Wersja: 1.3 Stable *
* Data: 17.06.2012 (15:07) *
* Autor: Jacek Kowalski (http://jacekk.info) *
* *
* Utwor rozprowadzany na licencji *
* http://creativecommons.org/licenses/by-nc-sa/2.5/ *
*****************************************************/
if(!extension_loaded('gd')) {
error::add('Brak rozszerzenia GD/GD2. Generowanie kodów kreskowych jest niemożliwe.');
}
$code = array(
'SS' => '100101101101',
'BT' => '0',
'0' => '101001101101',
'1' => '110100101011',
'2' => '101100101011',
'3' => '110110010101',
'4' => '101001101011',
'5' => '110100110101',
'6' => '101100110101',
'7' => '101001011011',
'8' => '110100101101',
'9' => '101100101101',
'A' => '110101001011',
'B' => '101101001011',
'C' => '110110100101',
'D' => '101011001011',
'E' => '110101100101',
'F' => '101101100101',
'G' => '101010011011',
'H' => '110101001101',
'I' => '101101001101',
'J' => '101011001101',
'K' => '110101010011',
'L' => '101101010011',
'M' => '110110101001',
'N' => '101011010011',
'O' => '110101101001',
'P' => '101101101001',
'Q' => '101010110011',
'R' => '110101011001',
'S' => '101101011001',
'T' => '101011011001',
'U' => '110010101011',
'V' => '100110101011',
'W' => '110011010101',
'X' => '100101101011',
'Y' => '110010110101',
'Z' => '100110110101',
'-' => '100101011011',
'.' => '110010101101',
' ' => '100110101101',
'$' => '100100100101',
'/' => '100100101001',
'+' => '100101001001',
'%' => '101001001001',
);
function gen_binary($kod) {
global $code;
$kod = str_split($kod);
$ret = '';
foreach($kod as $key => $val) {
$ret .= $code[$val].$code['BT'];
}
return $ret;
}
function print_code($kod, $img, $b, $w) {
$kod = str_split($kod);
foreach($kod as $val) {
if($val==1) {
imageline($img, $now, 0, $now, 40, $b);
$now++;
}
elseif($val==0) {
$now++;
}
}
}
function kod($kod) {
global $code;
if(trim($kod, '0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ-. $')!='') {
error::add('Znaki inne niż cyfry, litery, pauza, kropka, spacja, ukośnik');
}
$kod = $code['SS'].$code['BT'].gen_binary($kod).$code['SS'];
$i = imagecreate(strlen($kod), 40);
$w = imagecolorallocate($i, 255, 255, 255);
$b = imagecolorallocate($i, 0, 0, 0);
print_code($kod, $i, $b, $w);
ob_start();
imagegif($i);
$img = ob_get_contents();
ob_end_clean();
return $img;
}
?>
Browse Code © 2010 by Jacek Kowalski