Generate QR code in codeigniter

What is QR code

QR code (abbreviated from Quick Response Code) is the trademark for a type of matrix barcode (or two-dimensional barcode) first designed for the automotive industry in Japan. A barcode is a machine-readable optical label that contains information about the item to which it is attached. A QR code uses four standardized encoding modes (numeric, alphanumeric, byte/binary, and kanji) to efficiently store data, extensions may also be used.

In this tutorial we will show you how to generate QR code in Codeigniter framework using qrcode library. This tutorial also contains Demo in which you can see how the code generating and can check output through scanning the code via various QR code scanner available in the market.

Code Sample

<?php
public function index()
{
$data['img_url']="";
if($this->input->post('action') && $this->input->post('action') == "generate_qrcode")
{
$this->load->library('ciqrcode');
$qr_image=rand().'.png';
$params['data'] = $this->input->post('qr_text');
$params['level'] = 'H';
$params['size'] = 8;
$params['savename'] =FCPATH."uploads/qr_image/".$qr_image;
if($this->ciqrcode->generate($params))
{
	$data['img_url']=$qr_image;	
}
}
$this->load->view('qrcode',$data);
}
?>

<?php

public function index()

{

$data['img_url']="";

if($this->input->post('action') && $this->input->post('action') == "generate_qrcode")

{

$this->load->library('ciqrcode');

$qr_image=rand().'.png';

$params['data'] = $this->input->post('qr_text');

$params['level'] = 'H';

$params['size'] = 8;

$params['savename'] =FCPATH."uploads/qr_image/".$qr_image;

if($this->ciqrcode->generate($params))

{

$data['img_url']=$qr_image;

}

$this->load->view('qrcode',$data);

}

Download the code from below or See the Demo

You can download full source code here, also you can check our demo here.

Download Now DEMO

That’s it. Download the full source code with library and implement it on your web app. You can also use this library in Core Php after making some required changes.

yhy
Thanks, will keep this for my future project.
- Tangle Skills
  Glad you like it.
Help me Senpai
Hi, can someone help me on this
Message: imagepng(C:xampphtdocsMyMeritSystemuploads/qr_image/17135.png): failed to open stream: No such file or directory
Filename: qrcode/qrimage.php
- Tangle Skills
  What exact problem you are having ? Check our demo section to see how it works.
- Tangle Skills
  Message: imagepng(C:xampphtdocsMyMeritSystemuploads/qr_image/17135.png): failed to open stream: No such file or directory
  Location should be like this
  Message: imagepng(C:xampp/htdocs/MyMerit/System/uploads/qr_image/17135.png):
  Correct it and will work fine
Muhammad Sidhiq
thank u so much
- Tangle Skills
  you’re welcome.
midlaj muhammed
wawooo working nicely..
thank you somuch
- Tangle Skills
  you’re welcome.
Shabbirhasan Nandoliya
Getting this error
An Error Was Encountered
Non-existent class: CI_Ciqrcode
help me……!
- Tangle Skills
  Class name is Ciqrcode not CI_Ciqrcode.
  Just load the library using this
  $this->load->library(‘ciqrcode’);
  or if you are not using Codeigniter just load class name “Ciqrcode”.
  - Shabbirhasan Nandoliya
    class name “Ciqrcode”alredy define but getting error in “Non-existent class: CI_Ciqrcode”
nicko360
Thank you. Really useful example. I used this combining with domPDF in CodeIgniter 3, to put the QR there.
Sunil Patel
hi
i want to generate a QR Code for a PHP form,
i.e on scannning of the code it should directly open the form for input
- Tangle Skills
  Use the form link to generate QR code and after the scan, the link will show and after clicking on its page will open with form. That’s the only possible way I can see.

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