How to Generate a QR code using PHP?

php qr-code

13,945

Try this:

<?php
header('Content-Type: image/png');

include( '../phpqrcode/qrlib.php' );
QRcode::png( 'PHP QR Code : )' );
?>

When outputting an image, you don't need HTML tags. Alternatively, you could use img tag with data:... source. For an example, see here.

13,945

Author by

seamus

Updated on June 04, 2022

Comments

seamus almost 2 years
I am attempting to turn some data into a QR on a webpage. To do this I am using 'php qrcode'.

Sourceforge Home Page of library: http://phpqrcode.sourceforge.net/

I am unable to generate the QR code using the library. Am I missing a PHP extension.

Thinking I was missing the GD2 extension, I did:
```
brew install gd
```
Current Code:
```
  include( '../phpqrcode/qrlib.php' );
  QRcode::png( 'PHP QR Code : )' );
```
Current Output:

�PNG IHDRWWKK/PLTE��U��~�IDAT8��ұ � PG.�N�t�tـ,V��H,pe��4Ĵq�k�� j��'^l��p�h�Sn�8D>3T-�%��:\��z��4{oL��!C�-��_o�r��r��m��x+��,}��ő��|i��ʚt{oZ6\,i�{�5몏{��Ϫ��/MIEND�B`�

Edit: I have tried changing the html header to image/png. Same results.
```
   <meta http-equiv="content-type" content="image/png" charset="UTF-8">
```
Edit: Full Sample Code, Same results, no QR code.
```
<?php header('Content-type: image/png'); ?>

<!DOCTYPE html>
<html lang="en" dir="ltr">
<head>
<meta http-equiv="content-type" content="image/png" charset="utf-8">
<title></title>
</head>
<body>

<?php

include( '../phpqrcode/qrlib.php' );
QRcode::png( 'PHP QR Code : )' );

?>

</body>
</html>
```
Edit: The following shows same results
```
<?php
header('Content-type: image/png');

include( '../phpqrcode/qrlib.php' );
QRcode::png( 'PHP QR Code : )' );
?>
```
Edit: Using laravel framework
- Franz Gleichmann about 6 years
  
  you have to set the content-type header so the browser knows it's an image, not text
- Andreas Storvik Strauman about 6 years
  
  Try adding header('Content-type: image/png'); to the top of your file!
- Ken Lee over 2 years
  
  Try (1) putting this code as test.php (<?php include( '../phpqrcode/qrlib.php' );QRcode::png( 'PHP QR Code : )' );?> , then (2) put <img src='test.php'> in your laravel view.
houcros over 4 years

OP says he's already using that library. I think he needs more detailed help on how to generate the QR code.