A very brief "crash course" in Object Orientation with PHP.

1. Beginners Guide to Object Orientation In PHP by Rick Ogden for PHPNW09

3. Encapsulated code

4. Protection of data

5. Many more things beyond the scope of this tutorial

7. Methods

8. A class is self sufficient by nature, and therefore can be implemented into multiple applications without modification.

12. $object->method();

14. $this->method();

16. They are often initialised when an object of the class is created (although they do not have to be)

17. They are defined at the top of the class

18. Methods can alter and interact with these properties throughout the existence of the object

21. Take arguments on execution

22. Return a value after execution

23. None of these are compulsory (although if it doesn't do any of these, it's a bit useless!)

25. Format data

26. Alter properties in a controlled way

28. Parameters can either be required, or have a default value

30. It is identified in a class as it has the method name __construct (for backwards-compatibility, a method with the same name as the class also works)

32. Added a method to return the full name of the person whose profile it is.

35. Any arguments that need to be given to the instructor are given on creation.

36. We will store our class in Profile.php

38. What form data is when it is returned from the class

39. Ability to alter code within the class, without having to worry about needing to change code in other parts of the application

41. Protected: Can only be accessed from within the class, or inherited class

42. Private: Can only be accessed from directly within the class (and not subclasses)

45. Override existing code

46. Why reinvent the wheel?

48. Main reason is it is less efficient than procedural code

49. Thank You Any Questions? For these slides and other things please visit my brand new website: http://www.rickogden.com/