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Course Introduction：Virtual File System (VFS) simulates file system operations in unit tests, avoiding the hassle of cleaning temporary files. This article describes how to use the vfsStream library to simplify the testing of file system operations in PHP unit tests. First, we have a simple FileCreator class for creating files:

2025-02-14 comment 0  515

Course Introduction：There are four practical methods for organizing helper functions in PHP projects: 1. Use a single or multiple helper files, suitable for small projects, placed in the core directory and loaded as soon as possible; 2. Group helper functions into static classes by category to improve readability and maintainability; 3. Automatically load global auxiliary files through Composer's autoload to ensure convenient access; 4. Use namespace and folder structure to manage a large number of auxiliary classes, such as class files divided by functions under App\Helpers. These methods are selected according to the project size. Small projects can use a single file, while large projects are suitable for using structured classes under namespace.

2025-07-07 comment 0  809

Course Introduction：Create a ZIP file using ZipArchive class: instantiate the object, call the open() method to create the file, addFile() or addFromString() to add content, and finally call close() to save. 2. The entire folder can be added to the ZIP by traversing the directory. 3. Make sure to check the return value of open() and ensure write permissions. 4.PHP uses standard ZIP compression by default. Simple and reliable operation.

2025-08-30 comment 0  713

Course Introduction：Core points Symfony Console is a standalone package that provides a simple framework for creating command line tools, which is useful for repetitive tasks such as data migration, importing, or creating cron jobs. To create a new command, you need to make the file executable. This can be done by creating a console file in the project root directory, ensuring the file is executable, and defining the console application. You can use Symfony's CommandTester class to test commands, which provides special input and output classes to test commands without the command line. Symfony Console is installed using Composer (the dependency management tool in PHP). It provides a simple

2025-02-10 comment 0  784

Course Introduction：Create a Blade file (such as alert.blade.php) located in the resources/views/components directory as anonymous components; 2. Use kebab-case syntax to call components, such as contents in the template; 3. Support subdirectory structure and reference nested components through point syntax, such as; 4. Process the passed attributes in the component through $attributes, and can merge the default attributes; 5. Anonymous components are suitable for purely display-free scenarios without complex logic, while class components are suitable for situations where data processing or Livewire integration is required. Summary: Anonymous components realize reusable UI through simple Blade files, no PHP classes are required, improving development efficiency and maintaining templates

2025-08-06 comment 0  326

Course Elementary  13931

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  82483

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  13268

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  24739

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  27568

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.