Php Private Protected Public
🔞 ALL INFORMATION CLICK HERE 👈🏻👈🏻👈🏻
Php Private Protected Public
Come write articles for us and get featured
Learn and code with the best industry experts
Get access to ad-free content, doubt assistance and more!
Come and find your dream job with us
What is the difference between public, private, and protected in PHP?
Difficulty Level :
Hard Last Updated :
15 Oct, 2018
public $tag_line = "A Computer Science Portal for Geeks!" ;
echo $this ->tag_line. "" ;
// A Computer Science Portal for Geeks!
// A Computer Science Portal for Geeks!
// A Computer Science Portal for Geeks!
echo $sum = $this ->x- $this ->y . "" ;
function mul() //Multiply Function
echo $sub = $this ->x* $this ->y;
private $name = "A Computer Science Portal for Geeks!" ;
echo "This is private method of base class" ;
// Uncaught Error: Call to private method demo::show()
protected $protected = 'Protected' ;
private $private = 'Private' ;
echo $this -> protected ;
echo $obj -> protected ; // Cannot access protected property
echo $obj -> private ; // Cannot access private property
$obj ->Display(); //Displays all properties
public $public = 'Public Sub Class' ;
protected $protected = 'Protected Sub Class' ;
echo $this -> protected ;
echo $obj2 -> protected ; // Cannot access protected property
echo $obj2 -> private ; // Cannot access priavte property
$obj2 ->Display(); //Displays all properties
Access Modifiers in Python : Public, Private and Protected
Difference Between Public Cloud and Private Cloud
Public vs Protected Access Modifier in Java
Difference between private keyword and private fields in TypeScript
Know your public and private IP addresses
Replacing 'public' with 'private' in "main" in Java
Public vs Private Access Modifiers in Java
How to Format a Write–Protected Pen Drive?
How to Create a Password Protected ZIP File in Linux?
Create Password Protected Zip File in Java
Protected vs Package Access Modifiers in Java
Advantages of getter and setter Over Public Fields in Java with Examples
HTTP headers | Public-Key-Pins-Report-Only
Juice Jacking - Public USB charging ports are not secure
Understanding "static" in "public static void main" in Java
How to hide your API keys from public in ReactJS?
How to Generate API URL for Public Instagram Feeds in Android?
Creating a Pull Request on any Public Repository from GitHub using VS Code
How to download public YouTube captions in XML using Pytube in Python?
How to Access Private Field and Method Using Reflection in Java?
Private Methods in Java 9 Interfaces
What is APIPA (Automatic Private IP Addressing)?
Data Structures and Algorithms – Self Paced Course
Ad-Free Experience – GeeksforGeeks Premium
5th Floor, A-118, Sector-136, Noida, Uttar Pradesh - 201305
We use cookies to ensure you have the best browsing experience on our website. By using our site, you
acknowledge that you have read and understood our
Cookie Policy &
Privacy Policy
Got It !
Public, private and protected are called access modifiers. Just like C++, PHP also have three access modifiers such as public, private and protected. The visibility of a property, a method or a constant can be defined by prefixing the declaration with these keywords.
Public Access modifier: This modifier is open to use inside as well as outside the class. Example:
Protected Access modifier: This modifier is open to use within the class in which it is defined and its parent or inherited classes.
Private Access modifier: This modifier is open to use within the class that defines it. ( it can’t be accessed outside the class means in inherited class).
Attention reader! Don’t stop learning now. Get hold of all the important DSA concepts with the DSA Self Paced Course at a student-friendly price and become industry ready.
Writing code in comment?
Please use ide.geeksforgeeks.org ,
generate link and share the link here.
php - What is the difference between public , private , and protected ?
What is the difference between public , private , and protected in PHP ?
PHP Access Modifiers - Public , Private and Protected
PHP 5.6 и PHP 7 на русском: Область видимости
PHP Access Modifiers - Private , Public , Protected ... | Studytonight
class Customer {
private $name;
public function setName($name) {
$this->name = $name;
}
public function getName() {
return $this->name;
}
}
$c = new Customer();
$c->setName(“Stuart Broad”);
echo $c->name; //error, $name cannot be accessed from outside the class
//$name can only be accessed from within the class
echo $c->getName(); //this works, as the methods of the class have access
//to the private data members or methods
public function setName ( $name ) {
public function getName ( ) {
$c - > setName ( “ Stuart Broad ” ) ;
echo $c - > name ; //error, $name cannot be accessed from outside the class
//$name can only be accessed from within the class
echo $c - > getName ( ) ; //this works, as the methods of the class have access
//to the private data members or methods
class Customer {
public $name;
public function setName($name) {
$this->name = $name;
}
public function getName() {
return $this->name;
}
}
$c = new Customer();
$c->setName(“Stuart Broad”);
echo $c->name; // this will work as it is public.
$c->name = “New Name” ; // this does not give an error.
public function setName ( $name ) {
public function getName ( ) {
$c - > setName ( “ Stuart Broad ” ) ;
echo $c - > name ; // this will work as it is public.
$c - > name = “ New Name ” ; // this does not give an error.
class Customer {
protected $name;
public function setName($name) {
$this->name = $name;
}
public function getName() {
return $this->name;
}
}
class DiscountCustomer extends Customer {
private $discount;
public function setData($name, $discount) {
$this->name = $name; //this is storing $name to the Customer
//class $name variable. This works
// as it is a protected variable
$this->discount = $discount;
}
}
$dc = new DiscountCustomer();
$dc->setData(“Stuart Broad”,10);
echo $dc->name; // this does not work as $name is protected and hence
// only available in Customer and DiscountCustomer class
public function setName ( $name ) {
public function getName ( ) {
class DiscountCustomer extends Customer {
public function setData ( $name , $discount ) {
$this - > name = $name ; //this is storing $name to the Customer
//class $name variable. This works
$this - > discount = $discount ;
$dc = new DiscountCustomer ( ) ;
$dc - > setData ( “ Stuart Broad ” , 10 ) ;
echo $dc - > name ; // this does not work as $name is protected and hence
// only available in Customer and DiscountCustomer class
Copyright © 2012 - 2021 www.phpflow.com All rights reserved.
You can also check other tutorial of PHP,
Access specifiers are used as a key component of Encapsulation and Data Hiding. By using either of the access specifiers mentioned above i.e. public , private or protected you can hide or show the internals of your class to the outside world.
A private access specifier is used to hide the data member or member function to the outside world. This means that only the class that defines such data member and member functions have access them. Look at the example below:
In the above example, echo $c->name will give you an error as $name in class Customer has been declared private and hence only be accessed by its member functions internally. Therefore, the following line echo $c->getName() will display the name.
A public access specifier provides the least protection to the internal data members and member functions. A public access specifier allows the outside world to access/modify the data members directly unlike the private access specifier. Look at the example below:
In the above example, echo $c->name will work as it has been declared as public and hence can be accessed by class member functions and the rest of the script.
A protected access specifier is mainly used with inheritance. A data member or member function declared as protected will be accessed by its class and its base class but not from the outside world (i.e. rest of the script). We can also say that a protected data member is public for the class that declares it and it’s child class; but is private for the rest of the program (outside world). Look at the example below:
In the above example, echo $dc->name will not work work $name has been defined as a protected variable and hence it is only available in Customer and DiscountCustomer class.
Important Note of Access Specifier in PHP5
In PHP5, access specifiers are public by default. This means that if you don’t specify an access specifier for a data member or method then the default ‘public’ is applicable.
Step 5: Created new views/partials/header.blade.php file (...)
header footer html file no longer exist or i cannot find
No, I have just covered laravel listing using datatable. (...)
Truly when someone doesn't know then its up to other users (...)
Hey I have one question, you don't have defined the route (...)
error The keys must be 64 chars (a-z, 0-9)
I am not sure, It might be db connection
