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constructor in oop

Bilal Ahmad answered on August 18, 2022 Popularity 9/10 Helpfulness 2/10

answer constructor in oop

constructor in oop

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                                                     // Constructor in OOP

/* Constructor is a special member function which is automatically invoked (call) when an object of a class is created. Constructor is used to initialize data members. */



   class Person{
    public $name,$age;
  
    // function __construct()                      // this is default constructor which has not parameters
    // {
    //     $this->name = "Arham";
    //     $this->age = 19;
    // }

    function __construct($n,$a)                    // this is parameterized constructor which has parameters.
    {
        $this->name = $n;
        $this->age  = $a;
    }

    // function __construct($n="",$a=0)            // this is also parameterized constructor which has parameters with initialize no values.
    // {
    //     $this->name = $n;
    //     $this->age  = $a;
    // }

    function display(){
        echo "Name = " . $this->name . " Age = ". $this->age;
    }
 
}

$p1 = new Person("Arham",19);                    // constructor function automatically call when an object create.

$p2 = new Person("Asad",20);                     // constructor function automatically call again because another object is created.

$p1->display();
$p2->display();

Popularity 9/10 Helpfulness 2/10 Language php

Source: Grepper

Tags: constructor oop php

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Contributed on Aug 18 2022

Bilal Ahmad

0 Answers Avg Quality 2/10

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