问生成ean13条形码并将其保存到png

EN

header('Content-type: image/gif');
imagegif($i);

$imageLocation = "where/you/want/to/save/your/file";
imagegif($i, $imageLocation);

<?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++;
            }
        }
    }
}

 include_once('path/to/BarCode.php');

 new BarCode('9780486425573');