inheritance

Author: mostafa6765

Inheritance/readme.md

@@ -1,36 +1,50 @@
 # Inheritance
+Inheritance is a fundamental concept of OOP, a class can inherit propertis(data) and behavior (method) from a parent class.
 
-Inheritance is one of the main pillar of OOP.Child extends Parent class.
+# Inheritance example (php)
 
-# SuperClass | SubClass
+-> parent class
 
-* SuperClass: SuperClass (Parent,Base class) which inherited with another class and that class access parent class attributes and methods.
+```php
+class Car {
+  public $make;
+  public $model;
+  public $year;
+  
+  public function getDetails() {
+    return "Make: " . $this->make . " Model: " . $this->model . " Year: " . $this->year;
+  }
+}
+```
 
-* SubClass: SubClass (child,derived class) which inherit  another class/classess.
+-> child class 
 
 ```php
-// Super class
-class Info
-{
-  private $name = "kamal";
-
-  public function getName()
-  {
-    return $this->name;
+
+class SportsCar extends Car {
+  public $price = 1200;
+  
+  public function getPrice() {
+    return $this->price;
   }
 }
 
-// Subclass
-class User extends Info
-{
-  //
-}
-$user = new User();
-$user->getName();
+$sportsCar = new SportsCar();
+$sportsCar->make = "Porsche";
+$sportsCar->model = "911 Turbo";
+$sportsCar->year = 2022;
+
+echo $sportsCar->getDetails();
+// Output: Make: Porsche Model: 911 Turbo Year: 2022
 ```
 
-# Inheritance type
+# Difference between super and sub class
+
+* `Super class`: Super class known as parent or base class. It inherited with another class (subclass). 
+
+* `SubClass`: SubClass is known as child class which inherit  another class. Subclass can access properties and method from parent class.
 
+# Inheritance types:
 * single
 * multi level
 * hierarchical