The library provides developers with the tools to generate Qr codes with ease. It is a total refactored version of the previous named yii2-qrcode-helper which was based on the ported PHP version of the libqrencode C library.
This new version is highly inspired by the great work of BaconQrCode, in fact, it uses a modified version of its code for the writers included on this package.
The preferred way to install this extension is through composer.
php composer.phar require 2amigos/qrcode-library:~1.1
The use of the library is quite easy when working as standalone. For example:
<?php use Da\QrCode\QrCode; $qrCode = (new QrCode('This is my text')) ->setSize(250) ->setMargin(5) ->useForegroundColor(51, 153, 255); // now we can display the qrcode in many ways // saving the result to a file: $qrCode->writeFile(__DIR__ . '/code.png'); // writer defaults to PNG when none is specified // display directly to the browser header('Content-Type: '.$qrCode->getContentType()); echo $qrCode->writeString(); ?> <?php // or even as data:uri url echo '<img src"' . $qrCode->writeDataUri() . '">'; ?>
In order to ease the task to write different formats into a QrCode, the library comes with a set of classes. These are:
This library comes also with two special classes to specifically work with the Yii2 framework. These are:
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