mirror of
https://github.com/chillerlan/php-qrcode.git
synced 2026-08-17 13:36:08 +00:00
smiley
129 lines
3.7 KiB
PHP
129 lines
3.7 KiB
PHP
<?php
|
|
/**
|
|
* SVG to raster conversion example using ImageMagick
|
|
*
|
|
* Please note that conversion via ImageMagick may not always produce ideal results,
|
|
* especially when using CSS styling (external or via <defs>), also it depends on OS and Imagick version.
|
|
*
|
|
* Using the Inkscape command line may be the better option:
|
|
*
|
|
* @see https://wiki.inkscape.org/wiki/Using_the_Command_Line
|
|
* @see https://github.com/chillerlan/php-qrcode/discussions/216
|
|
*
|
|
* @created 19.09.2023
|
|
* @author smiley <smiley@chillerlan.net>
|
|
* @copyright 2023 smiley
|
|
* @license MIT
|
|
*
|
|
* @noinspection PhpComposerExtensionStubsInspection
|
|
*/
|
|
declare(strict_types=1);
|
|
|
|
use chillerlan\QRCode\{QRCode, QROptions};
|
|
use chillerlan\QRCode\Data\QRMatrix;
|
|
use chillerlan\QRCode\Output\{QRCodeOutputException, QRMarkupSVG};
|
|
|
|
require_once __DIR__.'/../vendor/autoload.php';
|
|
|
|
class SVGConvert extends QRMarkupSVG{
|
|
|
|
protected function header():string{
|
|
[$width, $height] = $this->getOutputDimensions();
|
|
|
|
// we need to specify the "width" and "height" attributes so that Imagick knows the output size
|
|
$header = sprintf(
|
|
'<svg xmlns="http://www.w3.org/2000/svg" class="qr-svg %1$s" viewBox="%2$s" preserveAspectRatio="%3$s" width="%5$s" height="%6$s">%4$s',
|
|
$this->options->cssClass,
|
|
$this->getViewBox(),
|
|
$this->options->svgPreserveAspectRatio,
|
|
$this->options->eol,
|
|
($width * $this->scale), // use the scale option to modify the size
|
|
($height * $this->scale),
|
|
);
|
|
|
|
if($this->options->svgAddXmlHeader){
|
|
$header = sprintf('<?xml version="1.0" encoding="UTF-8"?>%s%s', $this->options->eol, $header);
|
|
}
|
|
|
|
return $header;
|
|
}
|
|
|
|
public function dump(string|null $file = null):string{
|
|
$base64 = $this->options->outputBase64;
|
|
// we don't want the SVG in base64
|
|
$this->options->outputBase64 = false;
|
|
|
|
$svg = $this->createMarkup($file !== null);
|
|
|
|
// now convert the output
|
|
$im = new Imagick;
|
|
$im->readImageBlob($svg);
|
|
$im->setImageFormat($this->options->imagickFormat);
|
|
|
|
if($this->options->quality > -1){
|
|
$im->setImageCompressionQuality(max(0, min(100, $this->options->quality)));
|
|
}
|
|
|
|
$imageData = $im->getImageBlob();
|
|
|
|
$im->clear();
|
|
$this->saveToFile($imageData, $file);
|
|
|
|
if($base64){
|
|
// use finfo to guess the mime type
|
|
$mime = (new finfo(FILEINFO_MIME_TYPE))->buffer($imageData);
|
|
|
|
if($mime === false){
|
|
throw new QRCodeOutputException('unable to detect mime type');
|
|
}
|
|
|
|
$imageData = $this->toBase64DataURI($imageData, $mime);
|
|
}
|
|
|
|
return $imageData;
|
|
}
|
|
|
|
}
|
|
|
|
|
|
// SVG from the basic example
|
|
$options = new QROptions;
|
|
|
|
$options->version = 7;
|
|
$options->outputInterface = SVGConvert::class;
|
|
$options->imagickFormat = 'png32';
|
|
$options->scale = 20;
|
|
$options->outputBase64 = false;
|
|
$options->drawLightModules = true;
|
|
$options->svgUseFillAttributes = false;
|
|
$options->drawCircularModules = true;
|
|
$options->circleRadius = 0.4;
|
|
$options->connectPaths = true;
|
|
$options->keepAsSquare = [
|
|
QRMatrix::M_FINDER_DARK,
|
|
QRMatrix::M_FINDER_DOT,
|
|
QRMatrix::M_ALIGNMENT_DARK,
|
|
];
|
|
$options->svgDefs = '
|
|
<linearGradient id="rainbow" x1="1" y2="1">
|
|
<stop stop-color="#e2453c" offset="0"/>
|
|
<stop stop-color="#e07e39" offset="0.2"/>
|
|
<stop stop-color="#e5d667" offset="0.4"/>
|
|
<stop stop-color="#51b95b" offset="0.6"/>
|
|
<stop stop-color="#1e72b7" offset="0.8"/>
|
|
<stop stop-color="#6f5ba7" offset="1"/>
|
|
</linearGradient>
|
|
<style><![CDATA[
|
|
.dark{fill: url(#rainbow);}
|
|
.light{fill: #eee;}
|
|
svg{ width: 530px; height: 530px; }
|
|
]]></style>';
|
|
|
|
|
|
// render the SVG and convert to the desired ImageMagick format
|
|
$image = (new QRCode($options))->render('https://www.youtube.com/watch?v=dQw4w9WgXcQ');
|
|
|
|
header('Content-type: image/png');
|
|
|
|
echo $image;
|