QR code generator using Codeigniter framework in PHP
Hello Friends, today I will discuss about QR code generator in Codeigniter. So, before generating QR code, you need to know first What is QR Code?
What is a QR code?
A QR code is a shortcut to Quick Response code. It is a machine-readable code consisting of an array of black and white squares. It is a type of barcode, typically it is used for storing URLs or other information for reading by the camera on a Smartphone.
The Quick Response Codes (QR codes), it allows encoding over 4000 characters in a two-dimensional barcode. The QR code system became popular outside the automotive industry due to its fast readability and huge storage capacity compared to standard UPC barcodes.
Let’s start to generate QR Code in Codeigniter.
Generate The Quick Response Code:
Using CodeIgniter framework in your web application, it is very easy and simple to generate the Quick Response Code(QR Code). I will help you step by step, so follow my steps with example and source code.
First of all, you need to create a button and add a URL link to the button. Next, go to the URL action, here I set the URL action on the Route Page. For example:
QR Button:
<a href="<?php echo base_url('qr-generate'); ?>?id=<?php echo $val1->id; ?>"><button> QR generate</button></a>
In Route, I have generated a function name in the Controller. In the Controller page, I will write the QR generator code.
Route.php
<?php $route['qr-generate']='Controller/print_qr'; ?>
Controller Page:
<?php function __construct() { parent::__construct(); $this->load->database(); $this->load->library('ci_qr_code'); $this->config->load('qr_code'); } function print_qr() { $user_id=$this->input->get('id'); $qr_code_config = array(); $qr_code_config['cacheable'] = $this->config->item('cacheable'); $qr_code_config['cachedir'] = $this->config->item('cachedir'); $qr_code_config['imagedir'] = $this->config->item('imagedir'); $qr_code_config['errorlog'] = $this->config->item('errorlog'); $qr_code_config['ciqrcodelib'] = $this->config->item('ciqrcodelib'); $qr_code_config['quality'] = $this->config->item('quality'); $qr_code_config['size'] = $this->config->item('size'); $qr_code_config['black'] = $this->config->item('black'); $qr_code_config['white'] = $this->config->item('white'); $this->ci_qr_code->initialize($qr_code_config); // get full name and user details $user_details = $this->UserModel->get_users_one($user_id); $image_name = $user_id . ".png"; // create user content $codeContents = "Name:"; $codeContents .= "$user_details->emp_fname"; $codeContents .= "\n"; $codeContents .= " DOB:"; $codeContents .= "$user_details->emp_dob"; $codeContents .= "\n"; $codeContents .= "ID No :"; $codeContents .= $user_details->emp_id; $params['data'] = $codeContents; $params['level'] = 'H'; $params['size'] = 2; $params['savename'] = FCPATH . $qr_code_config['imagedir'] . $image_name; $this->ci_qr_code->generate($params); $this->data['qr_code_image_url'] = base_url() . $qr_code_config['imagedir'] . $image_name; // save image path in tree table $this->User->change_userqr($user_id, $image_name); // then redirect to see image link $file = $params['savename']; if(file_exists($file)){ $target = 'global/tmp/qr_codes'.$file; redirect('home'); } } ?>
Model Page:
<?php function get_users_one($id) { $this->db->where('id', $id); $result = $this->db->get('uset_table'); return $result->row(); } ?>
If you Managed Hosting Services or you have managed a website of Secured Loan Calculator and you need to generate QR code in your web application so follow the example and source code.
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