How to use PHP to convert the QR code of the mini program into a URL

With the development of Internet technology, various new technologies continue to emerge, and mini programs are one of them. Mini programs are favored by more and more users because of their lightweight, quick startup, and download-free installation. As one of the important entrances to scan the code to open the mini program, the QR code in the mini program has become more and more important.

This article will describe how to use Php to convert the QR code of the mini program into a URL.

1. Prerequisites

The following conditions need to be met before conversion:

1. Prepare the mini program QR code.

2. Install the Php environment (Php 5.6 and above).

3. Install the QR code generation library.

2. Generate QR code

Before using Php to convert the mini program QR code into a URL, you need to generate the QR code first. Here we can use a third-party QR code generation library, Php QR Code, which is a lightweight Php QR code generation library. Use this class library to easily generate QR codes. First, you need to introduce this class library into the project. After introduction, you can use the following code to generate a QR code:

include "phpqrcode.php";
$url='http://www.admaimai.com';
$errorCorrectionLevel = 'L';//容错率 L 大约7%的字码可被修正 M 大约15%的字码可被修正 Q 大约25%的字码可被修正 H 大约30%的字码可被修正
$matrixPointSize = 10;//生成图片大小
//生成二维码图片
QRcode::png($url, false, $errorCorrectionLevel, $matrixPointSize, 2);

Among them, $url is the URL of the mini program, $errorCorrectionLevel is the error tolerance rate of the QR code, $matrixPointSize is the size of the generated QR code image, QRcode::png() is a method for generating QR codes.

3. Convert the QR code of the mini program into a URL

After generating the QR code of the mini program, we need to convert it into a QR code that can directly access the mini program. The URL of the program. The specific implementation process is as follows:

1. Introduce the QrReader.php class file into the project.

2. Use the following code to obtain the URL of the mini program:

include "QrReader.php";
$qrcode_path = "qrcode.png";//二维码图片路径
$qrcode = new QrReader($qrcode_path);
$url = $qrcode->text();

Among them, $qrcode_path is the path of the QR code image.

4. Summary

Through the introduction of this article, we have learned how to use Php to convert the mini program QR code into a URL. It should be noted that when using the QR code generation class library to generate QR codes, the error tolerance rate and generated image size need to be set according to specific needs. At the same time, when converting the mini program QR code, you need to pay attention to the path of the QR code. I hope this article can be helpful to everyone's development work.

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