Found a total of 10000 related content
How to Build Your Own Dependency Injection Container
Article Introduction：This article discusses how to build a simple dependency injection container (DI container) PHP package. All code in the article, including PHPDoc annotations and unit tests (100% code coverage), has been uploaded to the GitHub repository and listed on Packagist.
Key points:
Building DI containers helps developers understand the basic principles of dependency injection and the working mechanism of containers.
DI containers have two main functions: "dependency injection" and "container". It needs to be able to instantiate and include services using constructor injection or setter injection methods.
Symfony dependency injection containers can be used as a reference for creating custom containers. It divides container configuration into parameters and services, allowing secure storage
2025-02-15
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940
PHP Dependency Injection Container Performance Benchmarks
Article Introduction：Key Takeaways
Dependency Injection Containers (DIC) are a key tool for maintaining codebases in larger PHP applications and frameworks, but can impact performance. Some of the well-known DICs for PHP include PHP-DI, Symfony\DependencyInjection, Ze
2025-02-20
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672
What is the difference between a service container and a dependency injection container in PHP frameworks?
Article Introduction：Service containers and dependency injection containers are often mentioned in the PHP framework. Although they are related, they are different. Dependency injection containers (DICs) focus on automatically parsing class dependencies, such as injecting objects through constructors without manual instantiation. The service container extends its functions on this basis, including binding interfaces to specific implementations, registering singletons, managing shared instances, etc. When using it, if the class dependency resolution or cross-frame scenarios are discussed, it should be called DIC; if it involves service management within the framework, it is called a service container. The two are often integrated in modern frameworks, but understanding their differences can help to gain a deep understanding of the framework mechanism.
2025-06-04
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846
PHP Dependency Injection: Boost Code Maintainability
Article Introduction：Dependency injection provides object dependencies through external injection in PHP, improving the maintainability and flexibility of the code. Its implementation methods include: 1. Constructor injection, 2. Set value injection, 3. Interface injection. Using dependency injection can decouple, improve testability and flexibility, but attention should be paid to the possibility of increasing complexity and performance overhead.
2025-05-07
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385
PHP Master | Dependency Injection with Pimple
Article Introduction：Core points
Dependency injection is a key concept in application development, and by injecting dependencies into modules rather than hard-code them, you can write more efficient and more maintainable code.
Pimple is a simple dependency injection container that uses PHP's closure to define dependencies in a manageable way, helping to keep your code maintainable.
Two main techniques for injecting dependencies are constructor-based dependency injection and setter-based injection, each with its own advantages and disadvantages.
Pimple supports the DRY principle of software development by acting as a container that defines dependencies, avoiding duplication, making it easier to manage and centralize services in applications.
Pimple also offers advanced features such as using sharing
2025-02-24
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700
What is a Dependency Injection Container (DIC) and why use one in PHP?
Article Introduction：Dependency Injection Container (DIC) is a tool that manages and provides object dependencies for use in PHP projects. The main benefits of DIC include: 1. Decoupling, making components independent, and the code is easy to maintain and test; 2. Flexibility, easy to replace or modify dependencies; 3. Testability, convenient for injecting mock objects for unit testing.
2025-04-10
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521
How to Implement Dependency Injection in PHP
Article Introduction：Implementing dependency injection (DI) in PHP can be done by manual injection or using DI containers. 1) Manual injection passes dependencies through constructors, such as the UserService class injecting Logger. 2) Use DI containers to automatically manage dependencies, such as the Container class to manage Logger and UserService. Implementing DI can improve code flexibility and testability, but you need to pay attention to traps such as overinjection and service locator anti-mode.
2025-05-07
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1174
Deep dive into the Laravel Service Container and Dependency Injection
Article Introduction：Laravel's service container is a core tool for managing class dependencies and executing dependency injection. It simplifies code development and maintenance by automatically instantiating objects and their recursive dependencies. 1. The service container is like a "factory" that can automatically create and pass the required objects; 2. Support constructor injection (most commonly used), method injection (used in the controller type prompt), and setter injection (suitable for optional dependencies); 3. The binding methods include simple binding, singleton binding, and interface binding implementation classes to achieve decoupling; 4. In most cases, the container automatically resolves dependencies, and can also manually obtain instances through app() or make(); 5. Alias ??can be set for the binding and the binding is registered by the service provider to improve the application organizational structure and maintainability.
2025-07-03
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940
How to implement a simple dependency injection container in Go
Article Introduction：Define the container structure, including bindings and instances mappings and read and write locks; 2. Register the constructor through the Bind method, use reflection to verify and store the constructor and its return type; 3. Use the Get method to recursively parse the dependency through reflection, call the constructor and cache the instance; 4. Provide the Invoke method to simplify the process of obtaining dependencies, injecting the instance through pointers; 5. In the example, the injection of the database and service is shown, and the output shows that the dependency is correctly parsed and the singleton takes effect. This DI container uses reflection to realize automatic resolution and management of dependencies, supports constructor injection and lazy loading, and is suitable for small and medium-sized applications.
2025-09-03
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980
PHP Dependency Injection (DI):?Benefits and implementation.
Article Introduction：The article discusses Dependency Injection (DI) in PHP, focusing on its benefits like loose coupling, reusability, and improved testability, and implementation techniques such as constructor, setter, and interface injection, as well as service contai
2025-03-25
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455
How Can I Use Dependency Injection to Improve Testability in PHP 8?
Article Introduction：This article explores how Dependency Injection (DI) enhances PHP 8 code testability. It details best practices like constructor injection and interface-based dependencies, and cautions against over-mocking and complex dependency graphs. DI promote
2025-03-10
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302
How Does Dependency Injection Improve Testability in PHP?
Article Introduction：This article examines how Dependency Injection (DI) improves PHP testability. DI decouples classes, enabling easy mocking of dependencies for isolated unit testing. However, pitfalls like over-mocking and inconsistent DI implementation can hinder i
2025-03-10
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