How to create QR codes in WordPress to enhance the website user’s experience?

Today, the number of Internet users who access websites with smartphones has grown. A QR code is another way to improve the user experience through the careful use of mobile users. This article discusses a few topics, such as creating a QR code with the Google Chart and the GoQR API, add a QR permalink meta box to managed post and page screens (such as creating a meta box), How to add a QR code website link to the dashboard (such as creating a dashboard widget) and how to create a shortcodes.

What is the QR code?
The QR code or quick response code is identical to the bar code shown when wrapping multiple products. The biggest difference between them is the details of the barcode store in the horizontal direction. Here the QR code stores horizontal and vertical details. QR codes save hundreds of times more details than traditional barcodes.

Where can I use?
There are several ways to use QR codes on your WordPress sites, share encoded content, create download links, and improve your contact form with email, text messaging, and so on.

How can I create a QR Code?
Here we created a simple class that creates QR code using different methods (such as Google Charts API and GoQR) depending on the request. Please follow the basic structure of the class.

Note: The Google Infographics Charts API we used to create a QR code in this article was officially closed on April 20, 2012, but now it works but on Google, we can find the planned completion date I can not. Instead, I suggested supporting other free GoQR APIs.

In the above class, all the variables and methods are self-explanatory, but you only need to create methods in the class and add callback hooks at class constructor to use. Add more features using the following methods and hooks.

1.Adding QR Code Permalink Meta Box at the post or page

Adding QR Code Permalink Meta Box at post or page
Adding QR Code Permalink Meta Box at the post or page

2.Adding QR Code Website Link Widget at the dashboard

.Adding QR Code Website Link Widget at dashboard
.Adding QR Code Website Link Widget at the dashboard

3.Adding QR Code Post Link shortcode with arguments size and link

Adding QR Code Post Link shortcode with arguments size and link
Adding QR Code Post Link shortcode with arguments size and link

4.Adding QR Code for Post Content enclosed shortcode with arguments size

Adding QR Code for Post Content enclosed short code with arguments size
Adding QR Code for Post Content enclosed shortcode with arguments size

5.Adding QR Code for contact via email shortcode with arguments size, to, sub and body

Adding QR Code for contact via email shortcode with arguments size, to, sub and body
Adding QR Code for contact via email shortcode with arguments size, to, sub and body

6.Adding QR Code for contact via SMS shortcode with arguments size, to and msg

Adding QR Code for contact via SMS short code with arguments size, to and msg
Adding QR Code for contact via SMS short code with arguments size, to and msg

The next step is, open the functions.php of the currently active theme and drop this PHP code, or create a plugin and location. Here is a sample file called “script_quick_response_code.php” and you drop this PHP code and create a plugin header. You can download the full code here. I have created with this code.

Finally, to read the code. The App Store and the Google Play Store have a lot of apps to scan and read QR code. Download and install one of the apps on your smartphone. Open the application and scan and show the QR code. Hope in this article, it’s useful to add a QR code to the WordPress site. Leave the comments below and give us your opinion on the QR Code.

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