How to Declare a Class and Initializing a Class Object ?

Declaring Class in PHP5:
In PHP5 you create a new class using "class" keyword.
The basic declaration of a class:

class myClass
{
   public function getAge()
   {
      echo "Inside Method";
   }
}

Initializing an Class Object in PHP5

To access the class from the outside world i.e. outside the scope of
class; you will need to create an object instance of the class. This
can be achieved using "new" operator.

Initializing Class 

class myClass
{
   public function myAge()
   {
      echo "Inside Method";
   }
}     
$myClassObj = new myClass();

//Calling class method... 

$myClassObj->myAge();