Constructor in php

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PHP constructor used to initialize declared as function __construct(). Constructor no need to call but automatically called when the object of the class is being created.

Constructor may be default constructor and paraterized constructor

Default Constructor in PHP

 <?php
  class class1
   {   
     function __construct() //default constructor
     {
      echo "Constructor";
    }
 }
$c1=new class1();
?>

In the above program constructor is being called automatically and output is : constructor

Parameterized Constructor in PHP

<?php
  class Employee
   { 
    public $empId=0;
    public $empName=0;
    
     function __construct($eid,$ename) //parameterized constructor
    {
           $this->empId=$eid;
	    $this->empName=$ename;
    }
    function printEmpDetails() //default function with no arguement.
    {
     echo "Emp Id= this->empId";
     echo "EmpName= this->empName"; 
     }
   }   // end of class
   $e1= new Employee(102,'john');
   $e1->printEmpDetails();
  ?>

Above program uses the paramterized constructor and gives the output as following.

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Constructor in php

Default Constructor in PHP

Parameterized Constructor in PHP

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