php-qrcode/examples/fpdf.php

<?php
/**
 * @created      03.06.2020
 * @author       Maximilian Kresse
 * @license      MIT
 */

use chillerlan\QRCode\{QRCode, QROptions};
use chillerlan\QRCode\Common\EccLevel;
use chillerlan\QRCode\Data\QRMatrix;
use chillerlan\QRCode\Output\QROutputInterface;

require_once __DIR__ . '/../vendor/autoload.php';

$options = new QROptions([
    'version'          => 7,
    'outputType'       => QROutputInterface::FPDF,
    'eccLevel'         => EccLevel::L,
    'scale'            => 5,
    'bgColor'          => [234, 234, 234],
    'drawLightModules' => false,
    'imageBase64'      => false,
    'moduleValues'     => [
        // finder
        QRMatrix::M_FINDER_DARK    => [0, 63, 255],    // dark (true)
        QRMatrix::M_FINDER_DOT     => [0, 63, 255],    // finder dot, dark (true)
        QRMatrix::M_FINDER         => [255, 255, 255], // light (false), white is the transparency color and is enabled by default
        // alignment
        QRMatrix::M_ALIGNMENT_DARK => [255, 0, 255],
        QRMatrix::M_ALIGNMENT      => [255, 255, 255],
        // timing
        QRMatrix::M_TIMING_DARK    => [255, 0, 0],
        QRMatrix::M_TIMING         => [255, 255, 255],
        // format
        QRMatrix::M_FORMAT_DARK    => [67, 191, 84],
        QRMatrix::M_FORMAT         => [255, 255, 255],
        // version
        QRMatrix::M_VERSION_DARK   => [62, 174, 190],
        QRMatrix::M_VERSION        => [255, 255, 255],
        // data
        QRMatrix::M_DATA_DARK      => [0, 0, 0],
        QRMatrix::M_DATA           => [255, 255, 255],
        // darkmodule
        QRMatrix::M_DARKMODULE     => [0, 0, 0],
        // separator
        QRMatrix::M_SEPARATOR      => [255, 255, 255],
        // quietzone
        QRMatrix::M_QUIETZONE      => [255, 255, 255],
    ],
]);

if(php_sapi_name() !== 'cli'){
	header('Content-type: application/pdf');
}

echo (new QRCode($options))->render('https://www.youtube.com/watch?v=dQw4w9WgXcQ');

exit;