PHP Libraries

Other libraries

SF2 dependency injection component PHP class

Other libraries

Get it now

SF2 dependency injection component PHP class

<?php
namespace Symfony\Component\DependencyInjection;
use Symfony\Component\DependencyInjection\Exception\BadMethodCallException;
use Symfony\Component\DependencyInjection\Exception\InvalidArgumentException;
use Symfony\Component\DependencyInjection\Exception\OutOfBoundsException;
class ChildDefinition extends Definition
{
    private $parent;
    public function __construct(string $parent)
    {
        $this->parent = $parent;
        $this->setPrivate(false);
    }
    public function getParent()
    {
        return $this->parent;
    }

What is dependency injection?

IOC: English full name: Inversion of Control, Chinese name: Inversion of Control, it also has another name called Dependency Injection (DI). When an instance of a class requires the assistance of an instance of another class, in the traditional programming process, the caller usually creates an instance of the callee. With dependency injection, the work of creating the callee is no longer done by the caller, so it is called inversion of control. The work of creating the instance of the callee is done by the IOC container, and then injected into the caller, so it is also called Dependency injection.

Disclaimer

All resources on this site are contributed by netizens or reprinted by major download sites. Please check the integrity of the software yourself! All resources on this site are for learning reference only. Please do not use them for commercial purposes. Otherwise, you will be responsible for all consequences! If there is any infringement, please contact us to delete it. Contact information: admin@php.cn

Detailed explanation of the dependency injection process of PHP class reflection implementation

06Feb2018

PHP has a complete reflection API, providing the ability to reverse engineer classes, interfaces, functions, methods and extensions. Through the capabilities provided by class reflection, we can know how the class is defined, what attributes it has, what methods it has, what parameters the method has, what the path to the class file is, and other very important information. It is also because of the reflection of classes that many PHP frameworks can implement dependency injection to automatically resolve the dependencies between classes, which brings great convenience to our daily development.

Detailed explanation of the steps to implement dependency injection using PHP class reflection

19May2018

This time I will bring you a detailed explanation of the steps to implement dependency injection with PHP class reflection. What are the precautions for implementing dependency injection with PHP class reflection? The following is a practical case, let's take a look.

How to import third-party libraries in ThinkPHP

03Jun2023

Third-party class libraries Third-party class libraries refer to other class libraries besides the ThinkPHP framework and application project class libraries. They are generally provided by third-party systems or products, such as class libraries of Smarty, Zend and other systems. For the class libraries imported earlier using automatic loading or the import method, the ThinkPHP convention is to use .class.php as the suffix. Non-such suffixes need to be controlled through the import parameters. But for the third type of library, since there is no such agreement, its suffix can only be considered to be php. In order to easily introduce class libraries from other frameworks and systems, ThinkPHP specifically provides the function of importing third-party class libraries. Third-party class libraries are uniformly placed in the ThinkPHP system directory/

Use jquery.noConflict() to solve the problem of conflicts between jquery library and other libraries

20Jun2017

When developing with jQuery, you may also use other JS libraries, such as Prototype, but conflicts may occur when multiple libraries coexist; if conflicts occur, you can solve them through the following solutions: 1. jQuery libraries in other Import the library before and use the jQuery (callback) method directly such as:

What are linux dependency packages

24Mar2023

Linux dependency packages refer to "library files". Most dependency packages are library files, including dynamic libraries and static libraries. Linux systems, like other operating systems, are modular in design, which means that functions depend on each other, and some Functions require some other functions to support them, which can improve code reusability.

How to use pip tool in python

02Jul2019

After installing python, if you need to install some other libraries, there are generally two methods. One is to manually download and install them from the official website of each library; the other method is to install pip. Using pip can easily install various python libraries. library. After installing pip, you can directly install and delete third-party libraries through commands.

See all articles