PHP OOP Terms Explained

   

1. Class: Classes are the blueprints for PHP objects.
2. Class contains both data variables and functions.
3. Property: Variable inside a class called property.
4. Method: Function inside a class called method.
5. Methods are used to manipulate its own data.
6. $this: “$this” is one kind of built in variable which indicates own object.
7. $this is used to access properties and methods of own class.
8. You have to call a class using include or require where you use the class.
9. Such as: If your class name is “Person.php”, you have to call like

          <?  include (“Person.php ”); ?>

       Or,

          <?  require (“Person.php ”); ?>

        Then we have to instantiate our class, like

$person = new Person();

• Some other points

• Access Modifiers: Public, Protected, Private known as access modifiers.
• Instantiating: Instantiate means creating our object to use them.
• We will use $person variable to control the class person.
• We have to use arrow (->) operator to access methods and properties.
•  We have to use “new” keyword to create an object from a class. It is also called “Instantiating of a class”