Use of self or $this in PHP

self is used to access static or class variables or methods and this is used to access non-static or object variables or methods. So use self when there is a need to access something which belongs to a class and use $this when there is a need to access a property belonging to the object of the class.

1. What is the use of $this in PHP?
2. What is the purpose of self :: keyword in PHP?
3. What is self :: in PHP?
4. What is purpose of self keyword?
5. Which software is used in PHP?
6. Is PHP a dead language?
7. What is -> called in PHP?
8. Is self the same as this?
9. What is static method in PHP?
10. Why is PHP used for?
11. What is PHP and why it is used?
12. What is the :: in PHP?

What is the use of $this in PHP?

$this is mainly used to refer properties of a class. It is the way to reference an instance of a class from within itself, the same as many other object oriented languages. From the PHP docs: The pseudo-variable $this is available when a method is called from within an object context.

What is the purpose of self :: keyword in PHP?

It is used to refer the static members of the class. It is used to access non-static members of the class. PHP self refers to the class members, but not for any particular object. This is because the static members(variables or functions) are class members shared by all the objecxts of the class.

What is self :: in PHP?

In PHP, the self and this keyword are used to refer class members within the scope of a class. The class members can be either variables or functions. ... PHP this keyword refers a non-static member of a class with respect to the class instance created.

What is purpose of self keyword?

The self keyword is used to represent an instance (object) of the given class. In this case, the two Cat objects cat1 and cat2 have their own name and age attributes.

Which software is used in PHP?

NetBeans, the most widely used PHP IDE for PHP application development. This tool comes with all the rich features, which supports multiple languages. NetBeans was initially used for Java development, but the current version of this tool is lightweight, faster as well as supportive for PHP development services.

Is PHP a dead language?

According to W3Techs' data, PHP is used by 78.9% of all websites with a known server-side programming language. So almost 8 out of every 10 websites that you visit on the Internet are using PHP in some way. ... But when the number is still over 75%, it's tough to use that decline to pronounce PHP as dead.

What is -> called in PHP?

The single arrow can easily be referred verbally as what it means for PHP OOP: Member. So, for $a->var you would say "Object a's member var". ... Instantiate new instance of 'MyClass' (no arguments) as variable object 'myobject', terminate line. Call member method 'bar' of object 'myobject', terminate line."

Is self the same as this?

Technically both self and this are used for the same thing. They are used to access the variable associated with the current instance. Only difference is, you have to include self explicitly as first parameter to an instance method in Python, whereas this is not the case with Java.

What is static method in PHP?

PHP - Static Methods

Static methods can be called directly - without creating an instance of the class first.

Why is PHP used for?

PHP stands for Hypertext Preprocessor and is a server-side programming language. ... A good benefit of using PHP is that it can interact with many different database languages including MySQL. We work with MySQL at Bluelinemedia since this is also a free language so it makes sense to use PHP.

What is PHP and why it is used?

PHP is a server side scripting language. that is used to develop Static websites or Dynamic websites or Web applications. PHP stands for Hypertext Pre-processor, that earlier stood for Personal Home Pages. PHP scripts can only be interpreted on a server that has PHP installed.

What is the :: in PHP?

The Scope Resolution Operator (also called Paamayim Nekudotayim) or in simpler terms, the double colon, is a token that allows access to static, constant, and overridden properties or methods of a class. ... It's possible to reference the class using a variable.