Student information management system (data transmission between js and php)

The end of the latest period is approaching, busier, slower, forgive me. After setting up the environment and confirming the connection, we can start writing programs. Then build tables. insert data (Here's just one example) Also note when creating a table, because you want to create a view, you should build an ...

Added by Crow on Sat, 18 May 2019 05:36:08 +0300

PHP & MySQL "Data Association One-to-One" Best Practice

Preface In the process of development, we usually encounter many one-to-one data processing situations. Most of the time we will get a list, and then a single record of the list corresponds to another table to achieve business. For example, the following two tables of commodity information and commodity details, here in order to demonstrate the ...

Added by Vizzini on Sat, 18 May 2019 01:31:07 +0300

Laravel Core Interpretation--ENV Loading and Reading

Laravel loads the. env file in the project at startup. It is often useful for applications to run in different environments with different configurations. For example, you might want to use the tested Mysql database locally and switch the project to the production Mysql database automatically when it comes online. This article will introduce th ...

Added by kdidymus on Fri, 17 May 2019 12:59:48 +0300

Development of Visitor-to-Visitor System Based on Face Recognition Technology

Recently, a community has used Hongsoft face recognition, the effect is good. There is another project to compare visitors with their ID cards and share the project, hoping to help them in need. The address of the project should be added before the codeword. https://gitee.com/panmingzhi/IdCardFaceIdentifier First of all, we use Huashi CVR 100U. ...

Added by RJDavison on Thu, 16 May 2019 11:06:15 +0300

Redis Distributed Lock--PHP

The Role of Redis Distributed Locks In a stand-alone environment, there is a second-kill commodity activity, in a short time, server pressure and traffic will rise sharply. This will lead to concurrency problems. If you want to solve concurrency, you need to solve it. 1. Improving system throughput, that is, requests processed by qps per second ...

Added by Drebin on Thu, 16 May 2019 01:18:22 +0300

PHP Full Stack Learning Notes 4

PHP and JavaScript, master JavaScript foundation, custom functions, process control statements, events, call JavaScript scripts, use JavaScript in PHP. JavaScript, developed by Netscape, is an interpreted scripting language based on object and event driven and with security performance. JavaScript Foundation, Data Types, Variables, Annotatio ...

Added by wiggly81 on Thu, 16 May 2019 00:18:55 +0300

Ajax Data Request Server for Integration of Front-End Note Points & Resolving Cross-Domain & Three-Level Linkage & session & Stack

1. JSON data at the back end of the request JSON is an interactive format for front-end and back-end communication. JSON(JavaScript Object Notation, JS Object Markup) is a lightweight data exchange format. JSON is a necessary format for communication between backstage and predecessors of the Internet, replacing the original XML. XML data fo ...

Added by Chappers on Wed, 15 May 2019 22:03:54 +0300

Pthon3 Test Tool Development Quick Start Tutorial 6 Modules

Modular Exit the Python interpreter and reenter, definitions of functions, variables, and so on will be lost.It is better for larger programs to use files edited by a text editor as execution input, that is, to create scripts.When a program becomes very long, it can be split into several files that are easier to maintain.You may al ...

Added by wei on Wed, 15 May 2019 00:27:56 +0300

Dedecmsv5.7 Integrates ueditor image upload with watermarking

The latest project is to redevelop dedecms v5.7. The uploaded pictures are required to be watermarked. Baidu ueditor Editor does not support automatic watermarking. So, I have found a lot of data to integrate and record, and the specific effect map.   I'm not going to carefully write dedecms v5.7 to integrate ueditor editor.   1. Open the confi ...

Added by sareejoh on Sun, 12 May 2019 13:44:43 +0300

Research on Switching Page Theme Style and less Tutorial

One day, a big man in the headline asked me, I heard that you had made theme switching in the project before, how did you achieve it at that time? Can you elaborate on it? If you already know less like the palm of your hand, Start right here.. From less Use Less is used in Node.js environment: npm install -g less > lessc styles.less styles. ...

Added by moe180 on Sun, 12 May 2019 13:24:49 +0300