[Drupal 7] How to generate QR code from text in a Drupal site?
One of our clients required us to create a Drupal based web application to generate QR code from text in their Drupal site. If you are looking for a way to generate QR code from any text in your Drupal site then read on to find out more .
The QR code which is an abbreviation for Quick Response Code was developed in Japan in the early 90’s as a 2d matrix bar code and it has gained rapid popularity since it could be used on any kind of print media to deliver machine readable encoded information.
Follow the steps below to enable your site to generate QR code.
sites/all/libraries/phpqrcode/
in your Drupal site.
//defining the base path of your Drupal installation
global $base_url;
function theme_name_preprocess_node(&$vars) {
// First we need to create the path for the img which will be generated as a png file.
// This will be automatically created using the code below
$qrpath = variable_get('file_public_path', conf_path() . '/files') . "/images/" . $vars['nid'] . '-C-qr.png';
// This is the data to be added to the QR code.
$text = "Some text";
// If the path is available we proceed to generate the form
if (!file_exists($qrpath)) {
$qrpath = theme_name_qrcode($text , $qrpath);
}
// This will print the path to the image in a theme
$vars['qrimgpath'] = $qrpath;
}
function theme_name_qrcode($text , $qrpath) {
// Including the qrcode library and generating the code
include("sites/all/libraries/phpqrcode/qrlib.php");
QRcode::png($text, $qrpath);
return $qrpath;
}
Hope that helps
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