Adding a Property

Adding a property to your class is just as easy as adding a method .You simply declare a variable inside the class to hold the value of the property.

saved as class.demo.php
 <?php
        class Demo{
          public $name; // public means everyone can access this property
        function sayHello($name){
            print "Hello  $this->name!"; /*the variable "name" doesn't need a $ while pointing itself with "$this " */
         }
   }
?>


saved as testdemo.php
 <?php
        require_once('class.demo.php');
        $objDemo=new Demo(); // objDemo pointed to a object  called Demo()
        $objDemo->name='Billy'; // assign a name to variable $name

        $objAnotherDemo = new Demo();
         $objAnotherDemo->name="Ed";

        $objDemo->sayHello();// access to the function called sayHello()
        $objAnotherDemo->sayHello();
?>