Simple PHP script that generates a QR code using the popular library called PHP QR Code. This library is open-source and easy to use. Follow these steps to create your QR code generator.
Step 1: Install the PHP QR Code Library
You can download the library from GitHub or directly using Composer if your project supports it.
If using Composer, run this command:
composer require endroid/qr-code
Step 2: Create the QR Code Generation Script
Create a new PHP file, for example, generate_qr.php, and add the following code:
<?php
require 'vendor/autoload.php'; // Ensure you have the autoload from Composer if using Composer
use Endroid\QrCode\QrCode;
use Endroid\QrCode\ErrorCorrectionLevel;
use Endroid\QrCode\LabelAlignment;
// Check if the form is submitted
if (isset($_POST['text'])) {
$text = $_POST['text']; // Get the text from the form
// Create a QR code
$qrCode = new QrCode($text);
$qrCode->setErrorCorrectionLevel(ErrorCorrectionLevel::HIGH());
$qrCode->setSize(300);
$qrCode->setMargin(10);
// Generate and save the QR code to a file
header('Content-Type: image/png');
echo $qrCode->writeString(); // Output the QR code as a PNG image
exit;
}
?>
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>QR Code Generator</title>
</head>
<body>
<h1>QR Code Generator</h1>
<form method="post" action="">
<label for="text">Enter text or URL:</label><br>
<input type="text" id="text" name="text" required>
<button type="submit">Generate QR Code</button>
</form>
</body>
</html>
Step 3: Run the Script
- Save the
generate_qr.phpfile to your web server’s document root directory. - Access the file through your web browser (e.g.,
http://your-server/generate_qr.php). - Enter the text or URL you want to encode into a QR code and click the “Generate QR Code” button.
Additional Features
If you want to extend the functionality, consider adding:
- Download Button: Allow users to download the generated QR code as a PNG file.
- Customizable Size and Margin: Let users specify the QR code size and margin.
- Styling: Use CSS to improve the look of your form and output.
You have now created a simple QR code generator using PHP! This script allows users to input text or URLs, and it generates a corresponding QR code image. Make sure your server meets the requirements for running PHP scripts, and the GD library is enabled for image handling.
