Design Pattern in PHP

Transcript

1. Design Pattern in PHP Nemanja Marić maki10
2. About me • PHP Developer at Abstract • Member of PHP Serbia Community • Co-organizer Laravel Serbia Meetup’s • Working with PHP since 2014 • In Laravel world from 2016 • Open source contributor • Contributing to the Laravel Framework • And most !important: Husband and father of two little angels
4. Interesting part Share your knowledge with others to get some knowledge.
5. Did you know what is new in Laravel 6.8?
6. Did you know what is new in Laravel 6.8?
7. Over the years
8. What will be covered?
9. ➔ Decorator Pattern ➔ Responsibility Pattern ➔ Adapter Pattern ➔ Strategy Pattern
10. Let's start with an easy one Adapter Pattern
11. Real life example
13. Definition An adapter allows two incompatible interfaces to work together.
14. Example Most famous example is a book and e-reader. So let’s dig in.
17. Run in terminal
18. Ok it’s a start but we miss definition
19. Definition An adapter allows two incompatible interfaces to work together.
20. Let’s add interface
21. Let’s add another one
23. We need to create a class to allow that two totally different interface to communicate
25. When making adapter key thing is to implement interface that we want to use
27. Do you know where we use this on Laravel?
28. Strategy Pattern
29. Definition Define family of algorithms, encapsulate each one and then make it interchangeable. Leverage polymorphism we are able to swap component in a runtime.
37. Leverage polymorphism we are able to swap component in a runtime
43. Do you know where we use this on Laravel?
44. Responsibility Pattern
45. Definition Chain of Responsibility is a behavioral design pattern that lets you pass requests along a chain of handlers. Upon receiving a request, each handler decides either to process the request or to pass it to the next handler in the chain.
51. How to be 100% sure that all item in a chain will use our check method?
53. But where is a chain? How that will work?
61. Do you know where we use this on Laravel?
62. Decorator Pattern
63. Definition Decorator is a structural design pattern that lets you attach new behaviors to objects by placing these objects inside special wrapper objects that contain the behaviors.
66. Number of services (class) could be insane high
70. Do you know where we use this on Laravel?
71. Questions? Slides: https://speakerdeck.com/maki10 Twitter: https://twitter.com/NemanjaMaki10 All materials for this topic are on Laracast and also can be founded on Youtube.