Futran Solutions Interview Questions and Answers

Composer is a dependency manager for PHP.

• Composer manages dependencies for PHP projects

• It allows you to easily install and update packages

• It creates a lock file to ensure consistent installations

• It can be used to autoload classes and files

• It supports version constraints for packages

Static class and function are used to define methods and properties that can be accessed without creating an instance of the class.

• Static class cannot be instantiated and all its members must be static

• Static function can be called without creating an instance of the class

• Static members are shared across all instances of the class

• Static members are accessed using the class name instead of an instance variable

An array is a collection of similar data types. in_array() function checks if a value exists in an array.

• Arrays can store multiple values of the same data type

• in_array() function returns true if a value exists in an array

• Syntax: in_array(value, array)

• Example: $fruits = array('apple', 'banana', 'orange'); in_array('banana', $fruits) returns true

Yes, we can declare multiple constructors in a class.

• Constructors are used to initialize objects of a class.

• Multiple constructors can be defined with different parameters.

• The constructor with the matching parameter list will be called.

• If no constructor is defined, a default constructor is provided by the compiler.

To make a fillable value, we can use input fields or forms in software applications.

• Use HTML input fields with appropriate attributes like 'name', 'type', 'placeholder', etc.

• In desktop applications, use form controls like text boxes, combo boxes, etc.

• Validate user input to ensure data integrity and prevent errors.

• Provide clear instructions and labels to guide users in filling out the form.

• Consider accessibility guidelines to ensure all users can interact with the form.

Polymorphism is the ability of an object to take on many forms.

• Polymorphism allows objects of different classes to be treated as if they were objects of the same class.

• It is achieved through method overriding and method overloading.

• Examples include function overloading, operator overloading, and inheritance.

• Polymorphism helps in achieving loose coupling and flexibility in code design.