Course Elementary  14120

Course Introduction：PHP string functions belong to the core part of PHP. No installation is required to use these functions. "PHP Function String String Function Video Explanation" explains the syntax, parameters, return values, etc. of PHP string functions, and runs examples of various string functions in the browser through the PHP editor to help PHP learners learn more Good to learn and use string functions.

Course Intermediate  4706

Course Introduction：There are two main purposes for studying this course: 1. Visual panel layout adapts to the screen 2. Use ECharts to realize histogram display Core Technology: -Based on flexible.js + rem smart large screen adaptation - VScode cssrem plug-in - Flex layout - Less to use - Based on ECharts data visualization display - ECharts histogram data settings - ECharts map introduction

Course Elementary  2151

Course Introduction：Python visualization video series using matplotlib, seaborn, pyecharts, combined with real data sets; this video is reproduced from Bilibili: BV1gz411v7F5

Course Elementary  21000

Course Introduction：Use PDO mode (PHP data object) to connect and select databases (unified operation of various databases), execute SQL statements and process result sets

Course Intermediate  8370

Course Introduction：Many programmers who have worked for many years still have a very basic understanding of databases. They are confused as soon as they go out for interviews. They don’t understand basic SQL statements, more complex SQL queries, and SQL statement optimization. They don’t even know how to use them. Redis improves system performance and can withstand tens of millions of concurrencies. This set of courses will help you thoroughly understand MySQL locks, execution plans, indexes, MVCC & Redis transactions, cache, breakdown, penetration, avalanche, warm-up, etc., and you can complete all database interviews in one set!

Course Intermediate  4194

Course Introduction：PHP and MySQL database are golden partners. Not only are they free to use, but more importantly, MySQL can be better combined with PHP. PHP also provides a dedicated programming interface for the MySQL database, improving development efficiency.

Course Advanced  10623

Course Introduction：SSDB is a high-performance NoSQL database developed in C/C++ language. It supports KV, list, map(hash), zset(sorted set), qlist(queue) and other data structures. It is used to replace or cooperate with Redis to store billion-level lists. The data.

Course Advanced  10892

Course Introduction：SSDB is a high-performance NoSQL database developed in C/C++ language. It supports KV, list, map(hash), zset(sorted set), qlist(queue) and other data structures. It is used to replace or cooperate with Redis to store billion-level lists. The data.SSDB is stable, used in production environments, and has been used in many Internet companies_From the SSDB Database User Manual

Course Advanced  29296

Course Introduction："Database MySQL Video Tutorial" provides a basic introduction to the database, allowing everyone to first understand the MySQL database, and then explain the DOS operation database.

Course Elementary  3154

Course Introduction：Reprinted from Bilibili: https://www.bilibili.com/video/BV1Ja411c74f

Course Intermediate  4105

Course Introduction：Redis is the most widely used storage middleware in the field of Internet technology. The understanding and application practice of Redis have become essential skills for mid-to-senior back-end developers today. MySQL is the preferred relational database for most Internet companies. Therefore, programmers cannot only understand the addition, deletion, modification, and query of the database and some simple usage skills. They also need to be proficient in some principles of MySQL to better deal with the problems encountered in actual work.

Course Elementary  19745

Course Introduction：PHP's powerful string processing functions are realized through hundreds of string processing functions with different functions. This set of courses selects string processing functions for different purposes, allowing you to quickly master PHP string processing skills in the fastest way.

Course Elementary  29823

Course Introduction：A classic introduction to PHP string operations, including how to declare, type conversion, variable parsing, commonly used string functions and practical cases

Course Elementary  7540

Course Introduction：AJAX stands for Asynchronous JavaScript And XML, which is asynchronous JS and XML. Through AJAX, you can send asynchronous requests to the server in the browser. The biggest advantage: obtaining data without refreshing. AJAX is not a new programming language, but a new way of using existing standards together.

Course Intermediate  11102

Course Introduction："HTML5 Development Mobile Terminal Data Report" will take you to understand a development process of H5. Let's summarize everyone's mastery and interest in HTML5, and the code of this project can also be reused. Okay, nonsense Without further ado, let’s get started! !

Course Elementary  10015

Course Introduction：The processing and analysis of strings is an important foundation in any programming language. The classification, parsing, storage and display of information, as well as data transmission in the network, all require the manipulation of strings. It is particularly important in web development. Most of the work of programmers is to operate strings, so string processing also reflects a programming ability of programmers.

Course Advanced  16112

Course Introduction："Backend Network MySQL Database Video Tutorial" introduces the concept of database, as well as some basic contents commonly used in databases, such as addition, deletion, modification, query, etc. It also has knowledge about database security, such as anti-injection, etc.

Course Intermediate  21476

Course Introduction：PHP is very suitable for rapid development of Web projects, and Web projects are inseparable from the support of databases. PDO is the access abstraction layer of the database, which can provide a unified access interface for all types of databases, making development simpler and operation safer. In particular, PDO preprocessing technology fundamentally eliminates SQL injection attacks. Therefore, this course focuses on the mainstream PDO preprocessing technology and gives you a complete introduction to this development technology.

Course Intermediate  3466

Course Introduction：Knowledge points: Echarts, D3.js, three.js, AntV (G2), national map, world map, divergent point depiction, dual axis, line chart, scatter chart, bar chart, heat map, ring chart, road map , 3DMap, parameter tuning