PHPDI

Welcome to the PHPDI project.

---

Hi, 😃 👋

This is a minimalistic PHP project with the aim to provide a simple but powerful solution to anyone that thinks Dependency Injection (DI) is something useful.

PHPDI is a DI container, allowing you to control your dependencies throughout your whole project. I won't explain here what DI and containers are in detail. For more information, you can visit this site 👉 HERE

• PHPDI
  • Welcome to the PHPDI project
  • So, now about the project
  • PHPDI_v1.1
    • Config:
    • Advantages
      • No more endless required_once
      • Scope Check
      • Logger options
      • Exception Logger options
      • Follow the best desgin principles
    • How to use
  • PHPDI_v1.2
  • Conclusion

So, now about the project

---

The whole design behind the realisation is Convention over Configuration. That doesn't mean that you won't need to make some tweeks and adjustments, but you won't need to do anything special.

Currently there are two versions of the project: This is the official second version. The second version contains everything from the first one.

Version one will not be maintained anymore.

Beta state means, that everything tested so far works, but that there might be some small bugs.

Alpha state means, that it is still in phase of testing and might be unstable, but that you can always give it a try and report issues, bugs, and missing features.

PHPDI

Config:

Config options	Description	Object type (Injection)
className	Name of the class to inject	Object, with parameterless constructor
isSingleton	Creates singleton object	Object, with parameterless constructor

Config options	Description	Object type (Injection)
name	Name of the value	Value type object
type	Type of the object (string, int and so on)	Value type object
value	Value, desired to be returned	Value type object

Config options	Description	Object type (Injection)
className	Name of the class to inject	Object, with constructor with parameters
isSingleton	Creates singleton object	Object, with constructor with parameters
params	The params for constructor	Object, with constructor with parameters

In the params, the root node is the name of parameter in the constructor and in it the defaulValue.

IMPORTANT: The config currently does not allow the use of reference type parameters when calling an injection. To get a reference type object when calling a dependency, you should use the container in the constructor in the class of the dependency and set its properties with the injected objects there.

See the examples in the project.

Advantages

No more endless required_once

There is an AutoLoader, which loads the classes automatically just when needed. Just specify the path in the LoaderConfig.php file once.

Easy change between service (injection) providers

You can easily switch between different configured injection configurations for development, testing, and production.

Scope Check

Be sure that only allowed classes can create instances and use object dependencies.

Logger options

Option to log all injections - Which examples are used and where.

Exception Logger options

Option to log some catched exceptions - Which examples are used and where.

Follow the best desgin principles

Option to check whether all injections have an interface inherited by them.

All these things, can be modified in the Config.php

Lazy Instantiation

Initially creates a proxy object which loads the whole object only when used.

Easier configs

The injection configs are now exported to json files, which makes working with different ones very easy.

How to use

composer require ivangrigorov/php-simple-dicontainer

Before use, you can delete the doc folder, index.php, IURLParser.php, and URLParser.php (which are used only for the tests). Update the config dependencies json file.

1. In your composer.json file add "autoload": { "classmap": ["vendor/ivangrigorov/php-simple-dicontainer/DI/Lib/"] }
2. Run composer update command
3. In your initial file add require __DIR__."/vendor/autoload.php";
4. Get instance of the container (static method)
5. Call the requested method with the correct parameters. (To get reference type object pass the className with the "I" prefix -> IclassName). 3.1. Example for parameter for getInjectionWithParams method - ["params" => array(["name" => "url"])]); If "value" is not given, the default from the config is used.

Conclusion

If you've read everything up to this point, congratulations 👏 and thank you for your interest 👍

The license for this is open source and free to use. I will appreciate a star or a good word if you think it deserves it.

You can raise issues and report problems or missing features. You can help with ideas and solutions too.

For contact - ivangrigorov9 at gmail.com