我正在使用Jacek Kowalski Kody kreskowe - EAN-13
(http://jacekk.info)来生成EAN13条形码并将其保存到图像文件中。我想在Prestashop的订购过程中动态生成条形码。将该图像保存在服务器上并将其放入new_order.html电子邮件模板中。
有完整的代码:https://jacekk.info/skrypty/ean13.phps
我通过将$_GET['kod']
更改为$kod_in
进行了轻微修改,并将$kod_in = 1234567891011
放在文件的开头,将imagepng($i, $new_filename);
放在最后
$kod_in = 1234567891011;
include (dirname(__FILE__)."/ean13.php");
但是当我尝试将上面的代码包含在订单处理中时,完全在mailalerts.php中,它不显示条形码并生成空白(白色)图像文件。我认为它与生成的条形码没有显示在屏幕上然后被保存的事实有关。
请帮助修改代码以生成图像,即使它们没有显示在屏幕上。
答案 0 :(得分:3)
在脚本结束时替换:
header('Content-type: image/gif');
imagegif($i);
有了这个:
$imageLocation = "where/you/want/to/save/your/file";
imagegif($i, $imageLocation);
您可以通过以下方式将此库用作Class:
<?php
/***************************************************
* Kody kreskowe - EAN-13 *
***************************************************
* Ostatnia modyfikacja: 01.11.2012 *
* Autor: Jacek Kowalski (http://jacekk.info) *
* *
* Strona WWW: http://jacekk.info/scripts/barcodes *
* *
* Utwór rozprowadzany na licencji *
* http://creativecommons.org/licenses/by-nc/2.5/ *
***************************************************/
/* Kodowanie znaków UTF-8 */
class BarCode {
public $kol = 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')
);
public $code = array(
'start' => '101',
'lewa' => 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'
)
),
'srodek' => '01010',
'prawa' => array(
'0' => '1110010',
'1' => '1100110',
'2' => '1101100',
'3' => '1000010',
'4' => '1011100',
'5' => '1001110',
'6' => '1010000',
'7' => '1000100',
'8' => '1001000',
'9' => '1110100'
),
'stop' => '101'
);
public $b;
public function __construct($barcode) {
$len = strlen($barcode);
if(trim($barcode, '0123456789')!='' OR ($len!=12 AND $len!=13)) {
echo 'Znaki inne niż cyfry lub błędna długość ('.$len.')';
die();
}
$kod = str_split(substr($barcode, 0, 12));
$now = 1;
$sum = 0;
foreach($kod as $val) {
if($now==1) {
$sum += $val;
$now = 3;
}
else
{
$sum += $val*3;
$now = 1;
}
}
$sum = 10-($sum%10);
if($sum==10) $sum = 0;
if($len==12) {
$barcode .= $sum;
}
elseif(substr($barcode, -1)!=$sum) {
echo 'Błędna suma kontrolna '.$sum;
die();
}
unset($len, $kod, $now, $sum);
$sys = substr($barcode, 0, 1);
$lewa = substr($barcode, 1, 6);
$prawa = substr($barcode, 7);
$i = imagecreate(95, 40);
$w = imagecolorallocate($i, 255, 255, 255);
$this->b = imagecolorallocate($i, 0, 0, 0);
$this->print_code($this->code['start'].$this->gen_binary($lewa, 0, $sys).$this->code['srodek'].$this->gen_binary($prawa, 1, $sys).$this->code['stop'], $i);
imagegif($i, 'test.gif');
}
public function gen_binary($kod, $strona, $sys) {
$kod = str_split($kod);
$ret = '';
if($strona==0) {
foreach($kod as $key => $val) {
$ret .= $this->code['lewa'][$this->kol[$sys][$key]][$val];
}
}
else
{
foreach($kod as $val) {
$ret .= $this->code['prawa'][$val];
}
}
return $ret;
}
public function print_code($kod, $img) {
$now = 0;
$kod = str_split($kod);
foreach($kod as $val) {
if($val==1) {
imageline($img, $now, 0, $now, 40, $this->b);
$now++;
}
elseif($val==0) {
$now++;
}
}
}
}
您需要在课程声明之前将其包含在文件顶部一次:
include_once('path/to/BarCode.php');
现在,您不必包含生成图片的脚本,而是必须创建新的BarCode
对象。
new BarCode('9780486425573');
测试并使用我的Prestashop 1.6。