How to use QRImageWithLogo.php

[Flaschenzug]

I am having issues with using the QRImageWithLogo.php ( https://github.com/chillerlan/php-qrcode/blob/f012a15bff005c028ee1428b5831344d89879180/examples/QRImageWithLogo.php )

The basic QR Code generation is working.

$data = 'https://URLTOPAGE'; echo '<img src="'.(new QRCode)->render($data).'" width="200" alt="QR Code" />';

But when I try to use the WithLogo version (from the example above):

`use chillerlan\QRCode\QRCode;
use chillerlan\QRCode\Output{QRCodeOutputException, QRImage};
require_once '/vendor/autoload.php';

class QRImageWithLogo extends QRImage{
public function dump(string $file = null, string $logo = null):string{
...
}

echo '';`

Fatal error: Uncaught Error: chillerlan\QRCode\Output\QRGdImage::__construct(): Argument #1 ($options) must be of type chillerlan\Settings\SettingsContainerInterface

And I have no idea, how I give QRImageWithLogo() what it needs.
I tried to find information about it here: https://php-qrcode.readthedocs.io/en/main/
But I am stuck.

Thanks for your help

[codemasher]

Hi! It löoks like you're using a v4.x example with the dev-main or beta branch (the class QRGdImage in which the error is thrown doesn't exist in v 4.x) - the documentation on readthedocs is currently only for the v5 (main) branch.

It seems the output instance is not invoked properly - it should look like this, where you replace MyCustomOutput::class with the class name of your custom class:

php-qrcode/examples/custom_output.php

Lines 31 to 36 in f012a15

	$options = new QROptions([
	'version' => 5,
	'eccLevel' => QRCode::ECC_L,
	'outputType' => QRCode::OUTPUT_CUSTOM,
	'outputInterface' => MyCustomOutput::class,
	]);

[codemasher]

Fatal error: Uncaught Error: chillerlan\QRCode\Output\QRGdImage::__construct(): Argument 1 ($options) must be of type chillerlan\Settings\SettingsContainerInterface

Also, the error might be thrown because the newer php-qrcode version uses a different version of the SettingsContainerInterface class if running under PHP 8.1+.

[Flaschenzug]

Okay, thanks. Using your first way (new QROptions with the MyCustomOutput) I get a qr code.
The only problem: The logo is not displayed inside the QR Code. QR code is correct (scannable).

As a path I used: ABSPATH."path-to-image.png";
Any ideas how to solve this?

And yes: I use PHP 8.1
So should I upgrade to V5 ?

And one last question:
I tried to add 'logo' to the options class list, but it does not work. Same for the widht and height of the logo.
How do I achive that using the method you showed above ($options = new QROptions([ ... )

Thank you so much :-)

[codemasher]

The issue has nothing to do with the used version per-se, it's rather a version mismatch (use the examples provided with the installed version). That said, you may want to fix several constants and the extended class from QRImage to QRGdImage as these are still remnants from the 4.x example and that are deprecated in v5.

[Flaschenzug]

And now I have another issue when using a long URL:
Fatal error: Uncaught Exception: code length overflow. (660 > 368 bit)

I found this topic: #31
But I have no idea where to set QRCode::VERSION_AUTO

( I use this file: /examples/imageWithLogo.php )

$options = new QROptions([
	'version'             => 5,
	'eccLevel'            => EccLevel::H,
	'imageBase64'         => false,
	'addLogoSpace'        => true,
	'logoSpaceWidth'      => 13,
	'logoSpaceHeight'     => 13,
	'scale'               => 6,
	'imageTransparent'    => false,
	'drawCircularModules' => true,
	'circleRadius'        => 0.45,
	'keepAsSquare'        => [QRMatrix::M_FINDER, QRMatrix::M_FINDER_DOT],
]);

$qrcode = new QRCode($options);
$qrcode->addByteSegment('https://github.com/chillerlan/php-qrcode/blob/main/src/QROptionsTrait.php#L17-L24');

[codemasher]

For "version"? You can also simply omit the version setting, which triggers auto detection (it is the default value).

[codemasher]

I think most of this is written in the documentation - if you think the docs are still lacking information, feel free to propose a change.

[Flaschenzug]

Wonderfull. Removing the version works. Thank you!