what is oops in php code example

Example 1: object oriented programming php

<?php
class Parent {
	public function __construct() {
    	echo "Parent Created\n";
    }
  	public function sayHello() {
    	echo "Hello, from Parent\n";
    }
  	public function eitherHello() {
    	echo "Hello, from Parent and child if desired\n";
    }
}
class Child extends Parent {
	public function __construct() {
    	echo "Child Created\n";
    }
  	public function sayHello() {
    	echo "Hello, from Child\n";
    }
}
$p = new Parent();	// Parent Created
$c = new Child();	// Child Created
$p->sayHello(); 	// Hello, from Parent
$c->sayHello();		// Hello, from Child
$p->eitherHello();	// Hello, from Parent and child if desired
$c->eitherHello();	// Hello, from Parent and child if desired
?>

Example 2: oops concepts in php

The  PHP Object-Oriented Programming concepts are:
Class 
Objects
Inheritance
Interface
Abstraction
Magic Methods

Example 3: oop php

<?php
   class Mobile {
      /* Member variables */
      var $price;
      var $title;
      /* Member functions */
      function setPrice($par){
         $this->price = $par;
      }
      function getPrice(){
         echo $this->price ."
";
      }
      function setName($par){
         $this->title = $par;
      }
      function getName(){
         echo $this->title ."
";
      }
   }
$Samsung = new Mobile();
$Xiaomi = new Mobile();
$Iphone = new Mobile();
$Samsung->setName( "SamsungS8 );
$Iphone->setName( "Iphone7s" );
$Xiaomi->setName( "MI4" );
$Samsung->setPrice( 90000 );
$Iphone->setPrice( 65000 );
$Xiaomi->setPrice( 15000 );
Now you call another member functions to get the values set by in above example
$Samsung->getName();
$Iphone->getName();
$Xiaomi->getName();
$Samsung->getPrice();
$Iphone->getPrice();
$Xiaomi->getPrice();
?>