Question

我从讲师那里得到了这个示例代码。我想修改代码，以便它可以从数据库中获取我的数据以生成条形码。我已经阅读了一些文章，但我仍然对生成条形码有任何想法。那我现在该怎么办？非常感谢您的帮助。

<?php
// Including all required classes
require_once('class/BCGFontFile.php');
require_once('class/BCGColor.php');
require_once('class/BCGDrawing.php');

// Including the barcode technology
require_once('class/BCGcode39.barcode.php');

// Loading Font
$font = new BCGFontFile('./font/Arial.ttf', 18);

// Don't forget to sanitize user inputs
$text = isset($_GET['text']) ? $_GET['text'] : '7895565';

// The arguments are R, G, B for color.
$color_black = new BCGColor(0, 0, 0);
$color_white = new BCGColor(255, 255, 255);

$drawException = null;
try {
    $code = new BCGcode39();
    $code->setScale(2); // Resolution
    $code->setThickness(30); // Thickness
    $code->setForegroundColor($color_black); // Color of bars
    $code->setBackgroundColor($color_white); // Color of spaces
    $code->setFont($font); // Font (or 0)
    $code->parse($text); // Text
} catch(Exception $exception) {
    $drawException = $exception;
}

/* Here is the list of the arguments
1 - Filename (empty : display on screen)
2 - Background color */
$drawing = new BCGDrawing('', $color_white);
if($drawException) {
    $drawing->drawException($drawException);
} else {
    $drawing->setBarcode($code);
    $drawing->draw();
}

// Header that says it is an image (remove it if you save the barcode to a file)
header('Content-Type: image/png');
header('Content-Disposition: inline; filename="barcode.png"');

// Draw (or save) the image into PNG format.
$drawing->finish(BCGDrawing::IMG_FORMAT_PNG);
?>

Answer 1

您的条形码是根据以下代码生成的：$code->parse($text); // Text

$text为$text = isset($_GET['text']) ? $_GET['text'] : '7895565';

的位置

所以你需要做的只是$text = $db->fetch();

如何在php中生成条形码

1 个答案: