What is $this Variable Vs self?

What is $this Variable Vs self?

$this is a pseudo-variable which is a reference to the current object.

$this is mostly used in object oriented code.

$this variable is used to call non-static method, if you are trying to call static method then it will throw the error that means $this variable is not available inside the static method.

Error that you will get while calling a static property or method using $this variable :

Fatal error: Uncaught Error: Using $this when not in object context in .. on line
Note:  Calling non-static methods statically in PHP 7 is deprecated that will generate an E_DEPRECATED warning. So i assume it may be removed in the future to call non-static methods statically.
  1. <?php
  2. class Product {
  3.     public $name='ExpertPHP';
  4.     public function aNonStaticMethod() {
  5.         echo $this->name;
  6.     }
  7. }
  8. $p1 = new Product();
  9. $p1->aNonStaticMethod();
  10. ?>

In above example, i have created a Product class with non static method and initialize a object to call aNonStaticMethod to display name property which is declared as public. Here i use $this variable to access public property declared within class.

self keyword

As you notice, this keyword is proceed with $ sign but self keyword is not proceed with any symbol.

With self keyword, you use scope resolution operator.

self keyword with scope resolution operator (::) you can call static method or properties of a class.

self keyword basically refer to current class name within a class.

Example :
  1. <?php
  2. class Product {
  3.     public static $name='ExpertPHP';
  4.     public function display() {
  5.         echo self::$name;
  6.     }
  7. }
  8. $p1 = new Product();
  9. $p1->display();
  10. ?>

In above example, you can see i have defined a name property as static and to access static property i use self keyword.

Phone: (+91) 8800417876
Noida, 201301
okey metin2 pvp serverler metin2 pvp
ataşehir escort maltepe escort bostancı escort kadıköy escort maltepe escort ataşehir escort tuzla escort pendik escort ümraniye escort kartal escort
pendik escort
izmir escort izmir escort izmir escort izmir escort denizli escort antalya escort antalya escort antalya escort izmir escort izmir escort izmir escort izmir escort izmir escort
hatay escort nevsehir escort nigde escort kirikkale escort batman escort osmaniye escort kirklareli escort tokat escort rize escort adiyaman escort gumushane escort batman escort
cialis satış cialis fiyat cialis 20 mg cialis 100 mg cialis 5 mg fiyat

viagra fiyatı

viagra 100 mg fiyat

viagra sipariş

orjinal viagra

viagra satın al

izmir escort
ataşehir escort
kocaeli escort izmit escort bayan gebze escort izmit sınırsız escort escort bursa tuzla escort aydınlı escort orhanlı escort bursa escort escort bayan istanbul escort istanbul sınırsız escort istanbul bayan escort izmit escort izmit escort kocaeli escort sisli escort mecidiyekoy escort bursa escort bayan bursa görükle escort maltepe escort goztepe escort yakacik-yeni-escort bursa sınırsız escort sisli escort bayan taksim escort bursa escort porno izle sikiş izle atasehir escort antalya escort
ankara escort marmaris escort bursa escort mersin escort antalya escort izmir escort samsun escort bodrum escort çeşme escort kuşadası escort adana escort eskişehir escort gaziantep escort esenyurt escort pendik escort tuzla escort fatih escort ümraniye escort mecidiyeköy escort kartal escort bahçelievler escort bahçeşehir escort ataşehir escort bakırköy escort nişantaşı escort avcılar escort büyükçekmece escort kurtkoy escort konya escort beşiktaş escort taksim escort beylikdüzü escort malatya escort sakarya escort şişli escort maltepe escort kadıköy escort ataköy escort bostancı escort şirinevler escort bağcılar escort üsküdar escort etiler escort başaksehir escort ortaköy escort kağıthane escort sultangazi escort halkalı escort çekmeköy escort şaşkınbakkal escort mamak escort sincan escort keçiören escort çankaya escort beypazarı escort akyurt escort pursaklar escort kahramankazan escort göztepe escort alsancak escort bornova escort buca escort karabaglar escort karşıyaka escort konak escort narlıdere escort izmit escort başiskele escort kandira escort körfez escort karamürsel escort dilovası escort gölcük escort gebze escort kocaeli escort kayseri escort elazığ escort denizli escort diyarbakir escort adana escort ankara escort izmir escort antalya escort gaziantep escort kayseri escort konya escort mersin escort denizli escort kocaeli escort diyarbakır escort
bedava bahis