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PHP OOP: Late Static Binding

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Late static Binding: Late static binding helps to override name by using static in echo keyword. It helps lot for writing minimum coding. The message of the base class is printed using the self keyword and the message of the derived class is printed using the static keyword. Example to printing the message of base … Read more

PHP OOP : Static Members

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What is Static Members ? Static properties and methods can be used without creating an instance of the class. The static keyword is used to declare properties and methods of a class as static. Object not create. Stack keyword use before access modifier. Inside class use self::(use static method). inherit use parent class name ::(properties). … Read more

PHP OOP : Interfaces

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What is Interfaces? Interfaces help us to use multiple classes in a single class inherit. Interfaces are declared with the interface keyword. Derived class is called derived class. object not be created in interface. Property should not be defined in interface(class). All interface methods must be public. All methods in an interface are abstract. To implement an … Read more

PHP OOP : Abstract Classes

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Abstract Class : when we create abstract class then we can not create object of that abstract class. If we want to use abstract class then we only access with derived class . Just abstract write before the class name. when we create abstract class two condition occurs one is abstract method like :- abstract … Read more

PHP OOP : Access Modifier (public, protected, private)

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What is the access modifier? Restrictions on properties and methods. Types of access modifier public protected private Public : Access on base as well as derived class and outside of the class. Everyone can see and access the data. Not secure. Override use. Protected : Base and Derived class. No one gets access throughout the … Read more

PHP OOP : Inheritance

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What is inheritance in php? Inheritance is properties of PHP. Accessing the feature of one class of another class. Three types that is single, multiple and multilevel inheritance. It is the four pillars of oops. It allows a class to reuse the code from another class without duplicating it. Two classes one is base/main another … Read more

PHP OOP : Constructor function

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What is Constructor ? Constructor is a special type of function of a class which is automatically executed when object of that class is created. Constructor is also called as magic function because in php constructor is start usually with two underscore characters. It saves lot of time on big project. Example of Constructor :-

JavaScript : Where to use javaScript code

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JavaScript code use in following : Between the body tag of html Between the head tag of html In .js file (external javaScript) 1. JavaScript use between html body tag : Example of javaScript using inside html between body tag. Output :- Hello World 2. JavaScript use between head tag in html : Example to … Read more

JavaScript : Introduction

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JavaScript : JavaScript is used to create client-side dynamic pages. JavaScript (js) is a light-weight object-oriented programming language. JavaScript is not a compiled language, but it is a translated language. The JavaScript Translator (embedded in the browser) is responsible for translating the JavaScript code for the web browser.  JavaScript, users can build modern web applications … Read more