Access Specifiers in PHP

Google Advertisements

Prev Tutorial Next Tutorial

Access Specifiers in PHP

There are three types of Access Specifiers available in PHP, Private, Protected and Public.

Public: Class members declared public can be accessed everywhere.

Protected: Class members declared protected can be accessed only within the class itself and by inheriting classes.

Private: Class members declared as private may only be accessed by the class that defines the member.

access specifiers in php

Syntax

<?php

class MyClass
{
  public $public = 'Public';
  protected $protected = 'Protected';
  private $private = 'Private';

 function printHello()
  {
   echo $this->public;
   echo $this->protected;
   echo $this->private;
  }
}

$obj = new MyClass();
echo $obj->public; // Works
echo $obj->protected; // Fatal Error
echo $obj->private; // Fatal Error
$obj->printHello(); // Shows Public, Protected and Private


/**
 * Define MyClass2
 */
class MyClass2 extends MyClass
{
    // We can redeclare the public and protected properties, but not private
    public $public = 'Public2';
    protected $protected = 'Protected2';

    function printHello()
    {
        echo $this->public;
        echo $this->protected;
        echo $this->private;
    }
}

$obj2 = new MyClass2();
echo $obj2->public; // Works
echo $obj2->protected; // Fatal Error
echo $obj2->private; // Undefined
$obj2->printHello(); // Shows Public2, Protected2, Undefined

?>

Prev Tutorial Next Tutorial

Google Advertisements

We have more than 5 Groups which have 500000+ Members and some Pages have more than 100000+ members. If you want to post your article on our website/FB Group/FB Page please contact on [email protected] or 8076671483

Buy This Ad Space @$50 per Month, Ad Size 600X200 Contact on: [email protected] or 8076671483

Path variable is set for providing path for all Java tools like java, javac, javap, javah, jar, appletviewer which are used in java programming. All these tools are available in bin folders so we set path upto bin folders.

Classpath variable is set for providing a path for predefined Java classes which is used in our application. All classes are available in lib/rt.jar so we set classpath upto lib/rt.jar.

Cloud computing is the on demand availability of computer system resources, especially data storage and computing power, without direct active management by the user.

College Projects Related to Java, AWT, C Projects for College, C++ Projects for College, Android Projects.

Download Projects

Adsense Advertisements


Buy This ads Space 8076671483

Buy This Ad Space @$120 per Month, Ad Size 300X600 Contact on: [email protected] or 8076671483 Try this Keyword C++ Programs