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Course Introduction：HeroQR: Your dream PHP QR code generation library. Are you still worried about QR code generation in PHP? Don't hesitate any longer! ?I am pleased to introduce you to HeroQR, an advanced open source PHP library designed to make QR code generation easy, powerful and flexible. Why choose HeroQR? HeroQR stands out for its customizability and ease of use. Whether you're a beginner looking for a simple QR code solution or an experienced developer in need of advanced features, HeroQR has what you need. Main Features of HeroQR HeroQR is designed to provide developers with powerful tools to create and customize QR codes. Here’s a quick overview of its standout features: Unparalleled customization with resizable additions

2025-01-15 comment 0  908

Course Introduction：This article details implementing two-factor authentication (2FA) in PHP using time-based one-time passwords (TOTP). It covers key generation, QR code display, verification, secure key storage, and best practices like input validation and rate limit

2025-03-10 comment 0  676

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  576

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  696

Course Introduction：In Dave The Diver, there are some creatures that are not easy to catch. Or, catch alive that is. The spider crab is one of those very species, making it seem like the only way to bring these crustaceans back up to land is to viciously crack them up w

2025-01-10 comment 0  859

Course Elementary  13822

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  82357

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  13175

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  24625

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  27484

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.