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Technical Articles

Database

Understand the underlying development principles of PHP: caching technology and data storage optimization

Understand the underlying development principles of PHP: caching technology and data storage optimization. With the development of the Internet, PHP, as an efficient and flexible programming language, is widely used in the development of websites and applications. It is crucial for developers to understand and master the underlying development principles of PHP. This article will focus on caching technology and data storage optimization in PHP to help readers optimize code and improve system performance. 1. Caching technology In PHP, caching technology is one of the keys to improving system performance. It can convert calculation results or database

Sep 08, 2023 pm 06:46 PM

缓存技术数据存储优化 PHP底层开发

What is the mongodb startup command?

The mongodb startup command is "mongod". After entering "mongod" in the command line, the MongoDB server will be started, listen to the default port 27017, and start accepting connection requests from clients. You can also use some parameters to configure the startup behavior of the MongoDB server, namely: 1. "--dbpath"; 2. "--port"; 3. "--bind_ip"; 4. "--auth"; 5. "--logpath"; 6. "--fork" and so on.

Sep 08, 2023 am 11:53 AM

mongodb

Differences between Google Cloud SQL and Cloud Spanner

CloudSQL and CloudSpanner are examples of cloud-based solutions running on GCP. You can scale your database using various services available in public clouds. When comparing cloud databases, there are significant differences between "NoSQL" and "SQL" databases that must be considered. We'll compare CloudSQL vs CloudSpanner so you can decide which one to use for your next project. Understanding the differences between CloudSQL and CloudSpanner, two of the most popular SQL cloud databases, may help you choose between them. What is GoogleCloudSQL? MySQL is the underlying data of Google CloudSQL

Sep 04, 2023 pm 08:53 PM

React: ensuring persistent data and seamless sessions

Having a "remember me" feature is a very useful feature and is relatively easy to implement using React and Express. Continuing with our previous part of setting up a WebRTC chat application, we will now add Mongo-backed persistent sessions and a database-backed list of online users for good measure. Session? If you haven't used sessions before, in short, they are very similar to cookies in that sessions allow you to track active users of your application in real time. Sessions actually work via a session cookie, which is sent in your application's request/response headers. So cookies and sessions are inherently intertwined. If we already have cookies, for

Sep 01, 2023 pm 09:49 PM

Choosing between Node.js and PHP for backend development

In this article, we will discuss PHP and Node.js: two popular backend technologies for web applications. We’ll discuss the key differences between them to help you choose the right backend technology for your next project. Introduction First let’s understand what these two backend technologies are and what they are used for. PHPPHP is the recursive abbreviation for PHP: Hypertext Preprocessor. It's a recursive abbreviation, so the first "P" actually stands for PHP! But originally, it referred to the personal homepage tool. It was created in 1994 by Rasmus Lerdorf. According to the official PHP documentation: PHP is a widely used open source general-purpose scripting language that is particularly suitable for web development and can be embedded into HTML. PHP

Aug 31, 2023 pm 11:05 PM

Install MongoDB Community Edition 4.0 on Linux

Introduction MongoDB is a popular open source NoSQL database management system known for its scalability, flexibility, and ease of use. If you are using a Linux operating system and wish to install MongoDB Community Edition 4.0, this article will provide you with a detailed guide with examples and corresponding command output. Prerequisites Before proceeding with the installation, make sure you meet the following prerequisites - Linux-based operating system (such as Ubuntu, CentOS or Debian). root or sudo permissions. Active internet connection. Step 1: Import the MongoDBGPG key To start the installation process, we first need to import the MongoDBGPG key

Aug 29, 2023 am 11:29 AM

Build a personalized mind mapping tool: a combined application of PHP and Vue

Building a personalized brain mapping tool: combined application of PHP and Vue With the explosive growth of information, people increasingly need a tool that can help organize and sort out their thinking. As an effective tool, mind mapping has been widely used in many scenarios such as knowledge organization, project management, and meeting notes. This article will introduce how to build a personalized mind mapping tool through PHP and Vue. Technology Selection Before starting to build a personalized mind mapping tool, we need to choose the appropriate technology to implement it. Since mind maps usually need to be displayed on the front end,

Aug 27, 2023 am 10:12 AM

工具个性化脑图

PHP API interface: How to extend API interface performance in the cloud

With the widespread application of cloud computing and cloud services, many companies have begun to deploy applications to the cloud. The benefits of this are higher reliability, better scalability and lower costs. In this case, the application needs to use API interfaces to communicate with different clients. However, some API interfaces may face performance issues, especially when the number of visits increases. At this time, extending API interface performance becomes an important task. In this article we will look at how to extend PHP API interfaces in the cloud

Aug 25, 2023 am 11:39 AM

API PHP 云端扩展

Build an LLM application: Leveraging the vector search capabilities of Azure Cognitive Services

Author | Curated by Simon Bisson | Ethan Microsoft’s cognitive search API now offers vector search as a service, for use with large language models in Azure Open AI and more. Tools such as Semantic Core, TypeChat and LangChain make it possible to build applications around generative AI technologies such as Azure OpenAI. This is because they allow constraints to be imposed on the underlying large language model (LLM), using it as a tool for building and running natural language interfaces. Essentially, an LLM is a tool for navigating the semantic space in which deep neural networks can Predict the next syllable in the token chain starting from the initial cue. If the prompt is open-ended, LLM

Aug 23, 2023 pm 10:49 PM

LLM Azure TypeChat

What technologies are needed for PHP microservices?

PHP microservices require the skills to choose a suitable PHP framework, use RESTful APIs for communication, use databases, message queues, service registration and discovery, containerization technology, use deployment and operation and maintenance tools, API gateways, etc. Detailed description: 1. Choose a suitable PHP framework. The framework provides routing, containers, dependency injection and other functions, which can help us easily build and manage microservices; 2. RESTful API, you can use the routing mechanism in the PHP framework to define the API Routing; 3. Database, etc.

Aug 17, 2023 pm 01:50 PM

php 微服务

How to use Java to write the data synchronization module of the CMS system

How to use Java to write the data synchronization module of a CMS system Introduction: With the development of the information age and the popularity of the Internet, content management systems (CMS) have been widely used in all walks of life. Among different user groups, content management requires the synchronization of multiple data sources, which requires an efficient and reliable data synchronization module. This article will introduce how to use Java to write the data synchronization module of the CMS system and provide relevant code examples. 1. Overview Data synchronization refers to the transfer of data between multiple data sources.

Aug 08, 2023 pm 11:49 PM

Java cms 数据同步

What are the mongodb startup commands?

The mongodb startup commands include mongod, mongod --config, mongod --fork, mongod --auth, mongod --replSet, mongod --shardsvr, mongod --configsvr, etc. Detailed introduction: 1. mongod, used to start the server process of MongoDB; 2. mongod --config specifies a configuration file to start MongoDB, etc.

Aug 08, 2023 pm 02:52 PM

mongodb

What data formats does json have?

There are two types of json data formats: object format and array/collection format. The characteristics of JSON data format are: 1. Simplicity, the syntax is very concise and clear, easy to understand and write; 2. Readability, using text format to represent data, easy to read and Debugging; 3. Scalability, supports multiple data types, and can flexibly represent complex data structures; 4. Platform independence, can be supported and parsed by multiple programming languages, making data exchange between different platforms more convenient Convenient; 5. Nestability, the value can be an object, and the value of the object can be an object.

Aug 07, 2023 am 10:37 AM

json 数据格式

The 30 most popular open source software among IT companies

More and more IT companies are open to open source. On the one hand, with excellent open source projects, there is no need to reinvent the wheel and can be used directly. On the other hand, their own companies have excellent self-research projects. In order to develop Changzhang can choose to open source the project so that more developers can participate and work together to improve the functionality of the software!

Aug 02, 2023 pm 05:31 PM

开源软件