How can a QR code link be retrieved and displayed as an image on a webpage using PHP?

To retrieve a QR code link and display it as an image on a webpage using PHP, you can use a library like PHP QR Code. This library allows you to generate QR codes from a given URL and then display it as an image on your webpage. 

<?php
require 'phpqrcode/qrlib.php';

// URL to encode in the QR code
$url = 'https://www.example.com';

// Generate QR code
QRcode::png($url, 'qr.png');

// Display QR code image on webpage
echo '<img src="qr.png" alt="QR Code">';
?>

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