gc-qrcode

Wrapper class for generating QR codes via the Google Charts API.

Installation

Available via the Sparks package management system for CodeIgniter. For info about how to install sparks, go to http://getsparks.org/install.

You can load the spark using:

$this->load->spark('gc-qrcode/[version #]/');

Usage

Configuring your code

The following methods are provided for configuring your QR code. Only size is required to generate a code.

$this->gc_qrcode->size(350)
                ->data('http://example.com/')
                ->output_encoding('UTF-8')
                ->error_correction_level('L')
                ->margin(0);

Output encodings

The valid output encodings are UTF-8, Shift_JIS, and ISO-8859-1.

Error correction levels

The valid error correction levels are L, M, Q, H.

Generating your code

Generate the URL for your QR code:

$url = $this->gc_qrcode->url();

Generate an <img> tag containg your QR code:

$img = $this->gc_qrcode->img();

By default, the image tag will contain the src, width, and height attributes.

You can optionally pass an array of attributes as the first parameter:

$img = $this->gc_qrcode->img(array('class' => 'qr-code'));

You can also specify whether or not you want the <img> tag to be self-closing. This is also optional.

$this->gc_qrcode->img(array(), TRUE); // Self-closing

$this->gc_qrcode->img(array(), FALSE); // Non self-closing

Reseting the class

Use clear() to initialize the class to an empty state.

$this->gc_qrcode->clear();