Course Introduction：Disabling Eclipse Code Formatter for Specific Code SectionsMaintaining code that requires vertical formatting, such as SQL statements written as...
2024-12-02 comment 0 1056
Course Introduction：This article presents a solution for retrieving specific values from an SQL database using PHP and its PDO library. The focus is on retrieving a single value from a single row using the fetchColumn method. It covers scenarios, potential troubleshooti
2024-10-21 comment 0 548
Course Introduction：This article introduces two methods to alphabetically sort the data obtained from the database in PHP. It is recommended to use ORDER BY clauses for sorting in SQL queries, which is more efficient. At the same time, a scheme for sorting arrays in PHP code is also provided. Through this article, developers can master how to return alphabetical JSON arrays in API interfaces, improving data processing efficiency and user experience.
2025-08-22 comment 0 359
Course Introduction：To use PHP for MySQL web development, you must first master the connection to the database, perform query and data operations. 1. It is recommended to use mysqli extension to connect to the database. Create a connection through newmysqli() and check whether it is successful; 2. Use query() method to execute SQL queries, combine fetch_assoc() to traverse the result set, and pay attention to prevent preprocessing statements from being used to prevent SQL injection; 3. When inserting or updating data, use prepare() and bind_param() to bind parameters to ensure safe transmission of values; 4. Common errors include connection failure, query results, insertion conflicts, etc. You can troubleshoot problems by checking configuration, field names, constraint restrictions and opening error prompts. Master these basics
2025-06-28 comment 0 1008
Course Introduction：The key to the first step in learning PHP is to practice hands-on rather than get stuck in the details. First, you need to install the environment, use XAMPP, Laragon or MAMP to quickly build the server, put index.php into the directory and run it directly; secondly, start with the basic code, master echo output, variables, conditional statements and loops, and avoid mixing HTML and PHP from the beginning; then use MySQLi to familiarize yourself with SQL operations when connecting to the database, and then gradually transition to PDO; finally, when debugging, enable error prompts, troubleshoot problems through logs and var_dump(), and only when writing and searching for information can you truly master PHP.
2025-07-18 comment 0 452
Course Elementary 13884
Course Introduction：Scala Tutorial Scala is a multi-paradigm programming language, designed to integrate various features of object-oriented programming and functional programming.
Course Elementary 82439
Course Introduction："CSS Online Manual" is the official CSS online reference manual. This CSS online development manual contains various CSS properties, definitions, usage methods, example operations, etc. It is an indispensable online query manual for WEB programming learners and developers! CSS: Cascading Style Sheets (English full name: Cascading Style Sheets) is an application used to express HTML (Standard Universal Markup Language).
Course Elementary 13234
Course Introduction：SVG is a markup language for vector graphics in HTML5. It maintains powerful drawing capabilities and at the same time has a very high-end interface to operate graphics by directly operating Dom nodes. This "SVG Tutorial" is intended to allow students to master the SVG language and some of its corresponding APIs, combined with the knowledge of 2D drawing, so that students can render and control complex graphics on the page.
Course Elementary 24692
Course Introduction：In the "AngularJS Chinese Reference Manual", AngularJS extends HTML with new attributes and expressions. AngularJS can build a single page application (SPAs: Single Page Applications). AngularJS is very easy to learn.
Course Elementary 27536
Course Introduction：Go is a new language, a concurrent, garbage-collected, fast-compiled language. It can compile a large Go program in a few seconds on a single computer. Go provides a model for software construction that makes dependency analysis easier and avoids most C-style include files and library headers. Go is a statically typed language, and its type system has no hierarchy. Therefore users do not need to spend time defining relationships between types, which feels more lightweight than typical object-oriented languages. Go is a completely garbage-collected language and provides basic support for concurrent execution and communication. By its design, Go is intended to provide a method for constructing system software on multi-core machines.
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