Help me to Understand Classes in OOP

[economists]

Will somebody help me understand the classes in OOP. I know basics of it as

class human {

private $name;
function setname ($name){
}
function getname (){
}
}

or suggest me easy to understand books.

[pbs]

Refer: http://php.net/manual/en/language.oop5.php

[Celauran]

Is there something specific you're struggling to understand? Some concept you don't get? For OOP in general, Sandi Metz's Practical Object Oriented Design in Ruby is probably the best book I have encountered on the subject.

[economists]

Thank you So much.