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How to generate QR Code in PHP

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YasminRadwan26
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2022-05-14
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How to generate QR Code in PHP

In this exercise, you will learn how to generate a QR Code in PHP in the easiest way.

QR Code stands for Quick Response code. Initially, it is developed for the automotive industry, but later it is widely used in a wider range of applications. By using this, we can replace a large amount of information, smart card data, consumer advertising, website url, telephone number, article and much more into a just two-dimensional matrix Barcode. It is capable of storing up to 4,296 alphanumeric characters of arbitrary text. The generated code can be read by a QR Code reader software using optical smart devices. PHP provides several libraries to generate QR code. Generating QR Code is very easy in PHP.

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YasminRadwan26
2022-05-14
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Generating QR Code using phpqrcode library

Here, we are using the QR Code library. PHP QR Code is open source library for generating QR Code, 2-dimensional barcode. For using this, first download the QR Code library from the Github -

Now create a PHP file in the same folder where you placed the phpqrcode folder. We need to include 'qrlib.php' file to use a function named 'png()'. This function is inside the QRcode class which outputs a QR code directly in the browser when we pass some text as a parameter.

Syntax

QRcode::png(text, file, ecc, pixel_size, frame_size);

text - the text message which needs to be in a QR code,
file - location to save the generated QR code,
ecc - to specify the error correction capability of the QR code, it has four levels: L, M, Q and H,
pixel_size - to specify the pixel size of QR,
frame_size - to specify the size of the QR.

Copy and paste the given code in your PHP file and replace the value in the content variable.

<?php
    include "phpqrcode/qrlib.php" ;
    $content = "http://www.etutorialspoint.com/" ;
    QRcode::png($content) ;
?>

When you execute the above code, you will get this QR Code.

QR Code

 

So, this is the way to access a brand's website more quickly by QR code scanner rather than manually entering an URL.

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