title: Are Objects the Same in Objective-C as They are in PHP?
body: <p>I am about to start learning Objective-C and I was wondering whether or not the concepts are the same as with PHP. For example, are the concepts in Object Oriented PHP the same as Objective-C, such as "Class, Instance, Message, Method, Instance Variable, Inheritance, Superclass/Subclass, and Protocol"? If so, this will I am guessing it will be much easier for me to learn and grasp since I already know the basics and foundations of Object Oriented PHP. Or are they completely different from each other?</p>
  
  <p>Any help and advice is greatly appreciated. Thanks!</p>