Tag Archives: 生成条形码

四 07

PHP生成条形码

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在barcode官网下载barcodegen.1d-php5.v5.0.1.zip版本，查看官方文档。

解压文件存放到本地测试服务器中，访问/index.php，跳转到/html/BCGcode39.php，页面效果如下：

20180407151049

生成条形码后，可以到此官网进行校验。

实例：

提交数据 /html/image.php?filetype=PNG&dpi=72&scale=2&rotation=0&font_family=Arial.ttf&font_size=10&text=961001272500&thickness=30&checksum=&code=BCGcode39

image.php 程序源码

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<?php
define('IN_CB', true);
include_once('include/function.php');
 
function showError() {
    header('Content-Type: image/png');
    readfile('error.png');
    exit;
}
 
$requiredKeys = array('code', 'filetype', 'dpi', 'scale', 'rotation', 'font_family', 'font_size', 'text');
 
// Check if everything is present in the request
foreach ($requiredKeys as $key) {
    if (!isset($_GET[$key])) {
        showError();
    }
}
 
if (!preg_match('/^[A-Za-z0-9]+$/', $_GET['code'])) {
    showError();
}
 
$code = $_GET['code'];
 
// Check if the code is valid
if (!file_exists('config' . DIRECTORY_SEPARATOR . $code . '.php')) {
    showError();
}
 
include_once('config' . DIRECTORY_SEPARATOR . $code . '.php');
 
$class_dir = '..' . DIRECTORY_SEPARATOR . 'class';
require_once($class_dir . DIRECTORY_SEPARATOR . 'BCGColor.php');
require_once($class_dir . DIRECTORY_SEPARATOR . 'BCGBarcode.php');
require_once($class_dir . DIRECTORY_SEPARATOR . 'BCGDrawing.php');
require_once($class_dir . DIRECTORY_SEPARATOR . 'BCGFontFile.php');
 
if (!include_once($class_dir . DIRECTORY_SEPARATOR . $classFile)) {
    showError();
}
 
include_once('config' . DIRECTORY_SEPARATOR . $baseClassFile);
 
$filetypes = array('PNG' => BCGDrawing::IMG_FORMAT_PNG, 'JPEG' => BCGDrawing::IMG_FORMAT_JPEG, 'GIF' => BCGDrawing::IMG_FORMAT_GIF);
 
$drawException = null;
try {
    $color_black = new BCGColor(0, 0, 0);
    $color_white = new BCGColor(255, 255, 255);
 
    $code_generated = new $className();
 
    if (function_exists('baseCustomSetup')) {
        baseCustomSetup($code_generated, $_GET);
    }
 
    if (function_exists('customSetup')) {
        customSetup($code_generated, $_GET);
    }
 
    $code_generated->setScale(max(1, min(4, $_GET['scale'])));
    $code_generated->setBackgroundColor($color_white);
    $code_generated->setForegroundColor($color_black);
 
    if ($_GET['text'] !== '') {
        $text = convertText($_GET['text']);
        $code_generated->parse($text);
    }
} catch(Exception $exception) {
    $drawException = $exception;
}
 
$drawing = new BCGDrawing('', $color_white);
if($drawException) {
    $drawing->drawException($drawException);
} else {
    $drawing->setBarcode($code_generated);
    $drawing->setRotationAngle($_GET['rotation']);
    $drawing->setDPI($_GET['dpi'] === 'NULL' ? null : max(72, min(300, intval($_GET['dpi']))));
    $drawing->draw();
}
 
switch ($_GET['filetype']) {
    case 'PNG':
        header('Content-Type: image/png');
        break;
    case 'JPEG':
        header('Content-Type: image/jpeg');
        break;
    case 'GIF':
        header('Content-Type: image/gif');
        break;
}
 
$drawing->finish($filetypes[$_GET['filetype']]);
?>