php-qrcode/examples/svg.php

<?php
/**
 * @created      21.12.2017
 * @author       Smiley <smiley@chillerlan.net>
 * @copyright    2017 Smiley
 * @license      MIT
 *
 * @noinspection PhpComposerExtensionStubsInspection
 */

use chillerlan\QRCode\{QRCode, QROptions};
use chillerlan\QRCode\Data\QRMatrix;

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

$gzip = true;

$options = new QROptions([
	'version'      => 7,
	'outputType'   => QRCode::OUTPUT_MARKUP_SVG,
	'imageBase64'  => false,
	'eccLevel'     => QRCode::ECC_L,
	'svgViewBoxSize' => 530,
	'addQuietzone' => true,
	'svgOpacity'   => 1.0,
	'svgDefs'      => '
		<linearGradient id="g2">
			<stop offset="0%" stop-color="#39F" />
			<stop offset="100%" stop-color="#F3F" />
		</linearGradient>
		<linearGradient id="g1">
			<stop offset="0%" stop-color="#F3F" />
			<stop offset="100%" stop-color="#39F" />
		</linearGradient>
		<style>rect{shape-rendering:crispEdges}</style>',
	'moduleValues' => [
		// finder
		(QRMatrix::M_FINDER << 8)     => 'url(#g1)', // dark (true)
		(QRMatrix::M_FINDER_DOT << 8) => 'url(#g1)',
		QRMatrix::M_FINDER            => '#fff',     // light (false)
		// alignment
		(QRMatrix::M_ALIGNMENT << 8)  => 'url(#g1)',
		QRMatrix::M_ALIGNMENT         => '#fff',
		// timing
		(QRMatrix::M_TIMING << 8)     => 'url(#g1)',
		QRMatrix::M_TIMING            => '#fff',
		// format
		(QRMatrix::M_FORMAT << 8)     => 'url(#g1)',
		QRMatrix::M_FORMAT            => '#fff',
		// version
		(QRMatrix::M_VERSION << 8)    => 'url(#g1)',
		QRMatrix::M_VERSION           => '#fff',
		// data
		(QRMatrix::M_DATA << 8)       => 'url(#g2)',
		QRMatrix::M_DATA              => '#fff',
		// darkmodule
		(QRMatrix::M_DARKMODULE << 8) => 'url(#g1)',
		// separator
		QRMatrix::M_SEPARATOR         => '#fff',
		// quietzone
		QRMatrix::M_QUIETZONE         => '#fff',
	],
]);


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

header('Content-type: image/svg+xml');

if($gzip === true){
	header('Vary: Accept-Encoding');
	header('Content-Encoding: gzip');
	$qrcode = gzencode($qrcode , 9);
}

echo $qrcode;