PHP- the concept of Inheritance in OOP is the ability to pass the implementation of the class from parents to children. Yes, classes can have parents, and the technical way of referring to this feature is that a class extends from another class. When extending a class, we get all the properties and methods that are not defined …
Access Specifiers in PHP play a very important role in OO(object-oriented) approach to programming. It is a key paradigm in OOP is encapsulation and access protection of object properties (also referred to as member variables). Most common OO languages have three main access restriction keywords: public, protected, and private. When defining a class member in the class …
Strings in PHP can be handle easily for real life application.In programming, strings are concatenations of characters. PHP brings a whole set of predefined functions that help you in interacting with strings. You can find the entire list of functions at http://php.net/manual/en/ref.strings.php, but we will only cover the ones that are used the most. Let’s look at …
Abstract Classes in PHP were introduced in version 5. Classes defined as abstract may not be instantiated, and any class that contains at least one abstract method must also be abstract. Methods defined as abstract simply declare the method’s signature – they cannot define the implementation. How to create an abstract method? We use the keyword abstract before the method name when we want to create an abstract …
Operators in PHP define the type of operation to be performed on the operands i.e. values and variables. Operators are of great importance for any programming language. It makes problem-solving very easy. In PHP we have the following set of standard operators: Increment and Decrement Arithmetic Relational/Comparison String Assignment Array Logical INCREMENT AND DECREMENT In programming terms, …