All Questions
Tagged with phpdependency-injection
41 questions
3votes
2answers
534views
Is it okay to use Dependency injection only because of unit testing?
I have a class that has dependencies that I know are not going to change. class ConversationFinder { public function __construct( protected Conversation $conversationDbFinder = new ...
4votes
1answer
881views
Cross-cutting concerns and dependency injection
I've got a web application with an architecture somewhat like a front-controller MVC design. I get HTTP requests, route them, run them through a filter layer, dispatch them to my domain classes which ...
- 187
1vote
3answers
146views
What considerations should I mind when designing methods or functions that take in a lot of parameters?
What considerations should I mind when designing methods or functions that take in a lot of parameters? A lot meaning over 4 but less than 10. Example, I am debating whether to pass in an array like ...
- 8,257
0votes
1answer
217views
Which types of objects that are instantiated inside controller's methods should be injected into the controller instead?
Consider code below MyController //MyAction //MyHandler { public function processRequest() { // ... $myObject = new MyObjectClass(); $myObject->methodCall(); ...
- 8,257
2votes
2answers
221views
What is wrong with writing web applications in a way that merges repository layer with view and with controller in the same file?
is there anything wrong with writing code in a way that merges view, repository, controller in the same file? i.e. global $db; // or $db = DBSingleton::get_db_instance(); // or global $container; $...
- 8,257
0votes
1answer
1kviews
Dependency Injection in one method to other method params
A teammate of mine wrote some code in the following way: Class Foo implements Job { // Framework uses type-hinting for dependency injection, only works on the handle() method // not on other methods ...
- 171
3votes
2answers
2kviews
Dependency Injection in Chain of Command pattern
I have a Chain of Command pattern implemented, with modules that implement an interface: interface IRequestHandler { public function handle(&$offset, &$tripData, $request = null); ...
- 173
-1votes
1answer
171views
Laravel Service Providers count and DI
I understand how service prividers in Laravel works and how to use them. But I'm not sure about how to keep clean code, specificaly in count of method parameters. For example I have this route: Route:...
2votes
1answer
259views
How to add extra functionality to an existing method class dynamically with DI?
I am looking for the best pattern to apply in my problem. I have an interface that defines my service class functionality interface NegotiationInterface { abstract public function ...
- 121
2votes
2answers
932views
How to use Dependency-injection Containers correctly when they hide dependencies from outer classes?
From Zend Docs there is this example of how to use Zend\Di, which is a dependency injection container of Zend Framework: // inside a bootstrap somewhere $di = new Zend\Di\Di(); // inside each ...
- 8,257
3votes
0answers
898views
Dependency injection - Nested objects
# Introduction I am working on a CMS application in PHP with about 200 classes. The CMS, in general, does the same thing every CMS does: generate sites. I am learning a lot about OOP and design ...
- 253
1vote
2answers
322views
Which programming technique can trim extra code generated by Dependency Injection?
Original Class class HomeController { function __construct() { $this->setPhpRenderer('Module'); $this->repository = new HomeRepository($id); $this->...
- 8,257
3votes
0answers
2kviews
Dependency Injection and class Inheritance
The project I am working on for about a year now was used to create a new mysqli connection to the database each time there was a Query to the database. In order to quickfix this problem at places ...
- 235
5votes
2answers
2kviews
PHP OOP dependency injection - when is it o.k. to use the "new" statement
I was told to avoid "new" statements in classes or functions but rather create the objects from classes in the root of the program (maybe with the use of a DI-container) and then inject the objects ...
- 51
5votes
2answers
2kviews
Dependency Injection & In-class Instantiation | Practical Limitations
Dependency Inversion is Good Inversion of dependency is good, it: Simplifies unit-testing Reduces coupling, allowing software components to be used interchangeably Keeps instantiation logic for a ...
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