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Course Introduction：Multi-File Upload with HTML and PHP via HTTP POSTUploading multiple files simultaneously can enhance the user experience for tasks such as image...

2024-12-16 comment 0  385

Course Introduction：PHP multi-line comments use // wrap content, suitable for explanation logic or blocked code; it is recommended that PHPDoc style be used for function and class comments to improve IDE recognition and development efficiency; comments should be clear and useful, avoid redundancy, and focus on explaining the reasons for implementation rather than the operation itself. For example: / comment content/or /*PHPDoc comments/defines function parameters and return values, and pay attention to closing symbols to avoid syntax errors. Good comments need to be combined with context to help understand complex logic or special handling methods.

2025-07-16 comment 0  222

Course Introduction：The key to converting UTC time to local time in PHP is to use the DateTime class and the DateTimeZone class to combine operations. 1. The global time zone can be set through date_default_timezone_set, which is suitable for projects that use a certain time zone uniformly; 2. It is also recommended to use newDateTime to create a UTC time object and call the setTimezone method to convert it to the target time zone to avoid affecting the global settings; 3. When obtaining UTC time from the database, it can dynamically convert according to the user's time zone to achieve multi-time zone support; 4. Pay attention to the accurate time zone name, automatic processing of daylight saving time and formatted output methods. Mastering these methods can handle time conversion problems more stably and efficiently.

2025-07-06 comment 0  337

Course Introduction：Comments are crucial in PHP development, and reasonable comments can improve code readability and maintenance. When choosing annotation method, 1. Single-line comments (// or #) are suitable for explaining single-line code or temporary blocking code; 2. Multi-line comments (/.../) are suitable for explaining function, class or file header information, but nested use should be avoided. 3. It is recommended to write DocBlock comments for functions and classes to clarify the purpose, parameters and return values to support IDE prompts and document generation. 4. Comments need to be modified synchronously as the code is updated to delete useless comments to prevent misleading. 5. Complex logic should be explained "why" rather than just describing operations. 6. The comments should be concise and clear, avoid lengthy and nonsense, and it is recommended to use Chinese writing. Although good annotation habits are small, they can significantly improve the quality of the code

2025-07-18 comment 0  575

Course Introduction：SqlParameter Parameters.Add vs. AddWithValue: Choosing the Best MethodWhen working with SQL commands, you may encounter the need to add...

2025-01-10 comment 0  694

Course Elementary  13818

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  82351

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  13173

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  24624

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  27483

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.