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PHP generates QR code

I want to use PHP to create a QR code for an information filling interface like the one shown below. The QR code is bound to the workstation. After scanning the code at different workstations, different information will be brought out from the database. I am a novice. Do not know what to do? Please ...

P粉441389533 2023-03-20 10:14:23 0  1  725

php - yii2 generates QR code and displays garbled characters

{Code...} According to the original example, the picture cannot be displayed

漂亮男人 2017-05-16 13:06:35 0  4  648

Can WeChat service account QR code posters be automatically generated?

I am a certified service account. I want fans to pay attention to automatically generate posters and do fan fission》》》Solution @微信 Bang platform generates QR codes for posters. You can click on the menu to automatically generate QR code posters. Follow and automatically generate QR code posters. , s...

whb2010 2019-03-28 16:12:15 1  0  1525

PHP generates pictures - Use PHP to generate QR code jpg pictures, but PS cannot open them. What is the reason?

Use PHP to generate QR code jpg images, but PS cannot open them. Has anyone encountered this? Do you know the reason?

phpcn_u1582 2017-05-16 13:05:42 0  1  709

oop - In Java, doubts about anonymous inner classes calling external class methods

Today I learned about inner classes and learned that inner classes can hold this of outer classes, so that OuterClass.this.medthod() can be used in inner classes to reference the corresponding outer class methods. But I wrote the code and it can run. However, I don't understand the calling logic ver...

漂亮男人 2017-05-17 10:07:37 0  1  1161

I have a website and want to log in by scanning the WeChat QR code

Similar to the PHP Chinese website, start--prompt to scan QR code to log in--user scans QR code--pops up to follow the public account---follow--login successful. After success, the server will generate UserID and OpenID binding. The next time the user scans the QR code to log in, he or she will log ...

襟地 2019-07-17 14:36:31 0  0  1486

php - How to implement the QR code shared by WeChat and Alipay

A QR code used in some stores can be scanned and paid by WeChat and Alipay. What is the principle? Is the QR code a simple web page? If it is a web page, how can two third parties be called at the same time? What about the interface?

歐陽克 2017-06-29 10:08:10 0  3  1083

php - How can such a link encoding be ASCII? How to convert to utf8 (see the main content for the link)?

{Code...} The printed encoding is ASCII. I want to convert it to utf-8. I have searched many methods but failed. Is there anyone who knows? Please give me some advice. Thank you! ! ! {Code...} Sorry, I just saw the reply and then I remembered that I finally wanted to solve this problem. In fact, I w...

淡淡煙草味 2017-06-13 09:21:57 0  2  953

I can't log in and register pdp toolbox

I successfully registered using the WeChat QR code, and then it displayed: Username (ID number). So I went back to the computer, and PHP still asked me to log in again. I couldn't log in. I couldn't log in using my WeChat account. What should I do? I want to register again, goto. I successfully regi...

dlzch 2018-05-16 09:46:46 0  0  939

How to get openid after scanning the QR code image generated with PHP?

I used the PHP QR code generation class library to generate a QR code picture (not generated by the WeChat interface). I want to get the openid of a WeChat user after scanning the QR code. How can I implement this function? (I previously thought of using web page authorization to achieve this, but t...

LRTRL 2017-06-28 16:57:44 0  1  2148

javascript - Use H5 technology to implement a barcode similar to WeChat, Alipay, and click full screen and automatically switch to landscape mode?

As title. I developed an APP using H5+. Clicking on the QR code has been implemented. How to better achieve the effect of clicking on the barcode to enlarge and horizontal screen is similar to the payment interface of Alipay and WeChat? Figure 3. I didn't do it well. I beg you all to provide elegant...

扔個三星炸死你 2017-06-14 10:50:51 0  3  1331

PHP nested function and anonymous function scope issues

{Code...} All functions and classes in PHP have global scope and can be defined within a function and called outside it, and vice versa. Why can function b obtain the local variables of function a by passing parameters? {Code...} Similarly, why does the anonymous function also obtain external variab...

phpcn_u1582 2017-05-18 10:45:34 0  1  733

vue.js - laravel5.3+vue2, vue cannot be loaded using nginx configuration

laravel5.3 + vue2, the project is a routing {code...} index template {code...} created directly by composer. Two methods 1. php+nginx, access does not load app.js, no output, no parsing vue Component 2. Laravel comes with artisan to start php artist serve and access...

怪我咯 2017-05-16 16:48:19 0  1  821

Shopware 6, abstract classes and dependency injection in Symfony

Currently I am developing a Shopware6 extension based on Symfony. What I don't understand is how to implement abstract classes and dependency injection. So I want to be able to refactor the code and use these methods often, but in another context (using another repository) <?phpdeclare(strict_typ...

P粉680087550 2024-01-09 08:44:57 0  1  637

How to distinguish Simplified Chinese, Traditional Chinese, Japanese, Korean in php

How does php distinguish between Simplified Chinese, Traditional Chinese, Japanese, and Korean? According to the methods given on the Internet, it seems that Chinese, Japanese, and Korean can be distinguished, but how to distinguish between Simplified and Traditional Chinese? {code...}

高洛峰 2017-05-24 11:33:59 0  3  776

javascript - ajax how to request php, php not running

The requirement is this. I have an ajax polling request for a php. In php, a message is actively pushed to a specific WeChat user. There is no output content. I just want it to run. But the actual situation is that there is no output and it does not run. I did a test, a code in php generates a file....

僅有的幸福 2017-05-27 17:41:54 0  8  845

php - Bank QR code payment access problem

Recently I was working on the bank's QR code payment access. After getting the document, there were a few things I didn't quite understand. 1. Downloaded the private key (.sm2) and public key (.cer) of the signed certificate and imported the public key directly. I don’t know how to use the private k...

世界只因有你 2017-05-16 13:02:18 0  1  1049

How to create a string equivalent to yyyyMMddHHmmssffff in PHP?

I'm trying to integrate with some VB code that generates a string using DateTime.Now.ToString("yyyyMMddHHmmssffff"). In PHP, the closest I can get is using date('YmdHis'). But this is missing the millisecond part. I have tried using microtime, such as date('YmdHis', microtime(true)), and t...

P粉238355860 2023-07-31 12:10:17 0  1  932

How to connect to the personal WeChat code scanning payment interface of payjs

Among the many personal payment interface products, it is difficult to find a stable and reliable product. Fortunately, when I came across payjs, I felt that it was of high quality and very satisfied with my taste. Recommended for everyone to use. Below are some of my experiences and techniques in t...

payjq 2019-06-12 20:07:19 0  1  1427

How to develop online questionnaire using PHP

PHP Develop Online Questionnaire Use PHP to develop an online questionnaire (there are options for normal and abnormal). The function I want to achieve is that after submitting the questionnaire, the abnormal questions will be displayed on the interface after submission. Scan the QR code again on th...

李楊 2020-03-06 21:54:33 0  0  885