How to Use phpqrcode: Generate QR Codes in PHP

PHP QR Code is a PHP library used for creating QR codes, allowing you to easily and quickly generate QR codes containing various information such as URLs, text, and more.

The method to generate QR codes using PHP QR Code is as follows:

1. To download the PHP QR Code library, you first need to download it from the official website (https://sourceforge.net/projects/phpqrcode/) or from GitHub (https://github.com/t0k4rt/phpqrcode) to get the latest version.
2. Importing library file: After extracting the downloaded PHP QR Code library file, include the qrlib.php file into your PHP code.

require_once 'qrlib.php';

1. Generate a QR code in PNG format.

QRcode::png('https://www.example.com', 'qr_code.png');

1. Display QR code: If you want to directly show the generated QR code image in the browser, you can add the following code before the output image header.

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

Then add the following code after displaying the image header.

echo file_get_contents('qr_code.png');

By following the above steps, you can easily generate QR codes using the PHP QR Code library. Additionally, PHP QR Code offers other parameters and methods that can be adjusted and used as needed.