This is a beginner level deck about how to start moving from procedural php code to understanding the basics of OOP. It's mostly terminology and a few concepts to help make understanding OOP just a bit easier.

1. Beginning OOP in
PHP
OpenWest - May 7, 2015
David Stockton

2. David Stockton
VP of Technology, i3logix
Denver, CO
Coding in PHP for over 17 years
Organizer of the Front Range PHP User Group for 5 years
Board of Directors, Front Range Web Developer Assoc.
@dstockto
http://davidstockton.com
http://tddftw.com
https://www.youtube.com/user/dstockto/videos
#phpmentoring
#phpstudygroup

3. What we’ll talk about
• Classes
• Objects
• Interfaces
• Inheritance
• Methods
• Properties
• Visibility
Modifiers
• Static
• Constructors

4. Why bother with OOP?
Lack of Abstraction
Problems with Procedural Code

5. Why bother with OOP?
Data stores as structure
Problems with Procedural Code

6. Why bother with OOP?
Functions are global and
not related to structures
Problems with Procedural Code

7. What is a class?
A blueprint

8. Simple Class

9. Defines state
What does a class do?

10. What are properties?
Information / Data on an
object

12. What does a class do?
Defines
behavior

13. What are methods?
Behaviors on a class

15. What’s an object?
An instance of a class

17. Constructor
One of PHP’s “magic” methods
__construct
Used to initialize the
properties of the object

21. Visibility Modifiers
Public
Protected
Private

23. Public
Method or property is available to anything
From anywhere

24. Protected
Property or method available
within the class or class’s inheritance
structure (both ways)

25. Private
Method or property only
available within the object

26. Inheritance

28. “is a”

30. “is a”
“is a”
“is a”
“is a”
“is a”
“is a”

32. “is a”
“is a”
“is a”
“is a”
“is a”
“is a”

33. What is encapsulation?

34. What is an interface?
Commonly named
functionality

35. What is an interface?
A contract
between caller and callee

36. Why are interfaces
important?
Allows common language and API for
different classes

41. Static
Method or class available at
Class level, no object needed
Changes affect all instances of
the class

43. Abstract Classes
Provides functionality to child classes
Cannot be instantiated

46. Questions?

47. Please
rate
this
talk
https://joind.in/13950