Class-Object visibility through Properties-Methods Access Modifiers

sohdubom · 08-21-2009, 04:16 PM

::Class-Object visibility through Properties-Methods Access Modifiers

In PHP, is it correct to say that we control Class-Object visibility by setting the correct Access Modifier to its properties and methods? eg. In PHP, classes are public, we can't declare a private nor protect class (we can use final and abstract, for other purposes)

Thanx in advance

ioan1k · 08-21-2009, 04:28 PM

I don't really understand what you are saying ... but

A class has optional definitions that are final or abstract that specify specific functionality
Read more about this at http://us3.php.net/manual/en/language.oop5.basic.php

Properties and methods defined in a class wither it is public, private or protected have no influence on visibility of the class itself you can read more about this at
http://us3.php.net/manual/en/languag...visibility.php

sohdubom · 08-21-2009, 05:19 PM

Quote:

Originally Posted by ioan1k

I don't really understand what you are saying ...

I'm talking about Encapsulation and Data Hiding, where Encapsulation is the ability to group attributes and methods inside a single class/object and Data Hiding is the ability to access control to class data(attributes) and methods from external users(other objects) ... as rule of thumb, access to class/objects functionalities should be done through its public interfaces, aka public methods ... attributes should all be private/protected for good Data Hiding to work ... obs. class's public interfaces not to be confused to the class construct named <<Interface>>

I'm new to PHP, but not to OO so I'm checking to see if my post regarding Encapsulation and Data Hiding in PHP was right ... I think so ... according to 'Enfernikus' last post