What is meant by constructors in PHP?

Constructor in PHP is special type of function of a class which is automatically executed as any object of that class is created or instantiated. Constructor is also called magic function because in PHP, magic method is start usually with two underscore characters.

What are constructor in programming?

In class-based object-oriented programming, a constructor (abbreviation: ctor) is a special type of subroutine called to create an object. It prepares the new object for use, often accepting arguments that the constructor uses to set required member variables. Immutable objects must be initialized in a constructor.

What is constructor in codeigniter?

in the constructor you can load the models, libraries, helpers, etc that your class needs, and they will be available for any method in the class. you can load in variables that are used by methods.

Where we can define the constructors?

Constructors are called for every object of a class being created. Whenever an array of class objects is defined then a default constructor is called for each object of the array. In other words, each object of the array is initialized with the same set of values using the default argument constructor.

Can I call another constructor from a constructor?

Calling a constructor from the another constructor of same class is known as Constructor chaining. The real purpose of Constructor Chaining is that you can pass parameters through a bunch of different constructors, but only have the initialization done in a single place.

What is a constructor in Csharp?

Constructor in C Sharp . In C#, Constructors are the special types of methods of a class which get executed when it’s object is created. Constructors are responsible for object initialization and memory allocation of its class.

What is constructor property?

The constructor property returns a reference to the Object constructor function that created the instance object. Note that the value of this property is a reference to the function itself, not a string containing the function’s name.

What is type of constructor?

Type constructor. In the area of mathematical logic and computer science known as type theory, a type constructor is a feature of a typed formal language that builds new types from old ones.