Course Introduction：Imagecreatefrompng() Rendering Black Background Instead of TransparencyThe provided PHP code for generating thumbnails using the GD library...
2024-11-04 comment 0 736
Course Introduction：Dompdf: Customization of Font Families in PDF GenerationIn dompdf, a popular PHP library for generating PDF documents, the default font family may...
2024-12-04 comment 0 934
Course Introduction：Verifying regular expressions for phone numbers is not difficult in PHP, but the key is to clarify the format standards of legal phone numbers. 1. Different countries and business scenarios have different requirements for phone number formats, so general regularity is unrealistic; 2. Common formats include pure numbers, area codes, hyphens, international area code beginnings, extension numbers, etc.; 3. PHP uses the preg_match() function to perform regular matching, and rules can be flexibly written according to requirements; 4. When designing regularity, elements such as supporting digits, allowing symbols, whether international area codes are included; 5. Common errors include trying to cover all formats, ignoring boundary conditions, not conducting multi-case tests, and relying on back-end verification only. It is recommended to customize regular expressions according to specific project needs and do two-factor verification before and after.
2025-07-07 comment 0 1016
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 0 907
Course Introduction：JWT is an open standard based on JSON, used to securely transmit information between parties, mainly for identity authentication and information exchange. 1. JWT consists of three parts: Header, Payload and Signature. 2. The working principle of JWT includes three steps: generating JWT, verifying JWT and parsing Payload. 3. When using JWT for authentication in PHP, JWT can be generated and verified, and user role and permission information can be included in advanced usage. 4. Common errors include signature verification failure, token expiration, and payload oversized. Debugging skills include using debugging tools and logging. 5. Performance optimization and best practices include using appropriate signature algorithms, setting validity periods reasonably,
2025-04-05 comment 0 1523
Course Elementary 13819
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 82352
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.
2017-05-16 12:58:07 0 3 669
php - How to output image in base64
2017-05-24 11:32:19 0 1 1000
Laravel Modal does not return data
2024-03-29 10:31:31 0 1 605
Can I use the automatic generation module of thinkphp5 in Windows 7 system? How to configure and use
2017-10-10 17:04:14 0 2 1400
