The enctype attribute determines how the form-data should be encoded when submitting it to the server. We need to set enctype as "multipart/form-data" when we are using a form for uploading files

In programming, often involves unforeseen happenings that disrupt the flow of events.These  unexpected happenings are known as exceptions.

Each array consists of two components:  key and a value. Keys can be numerical or associative. Numerical key use numeric value and associative key use string value.

The echo() function is a tad faster than print() function; because it returns nothing, whereas print () will return 1 if the statement is successfully output. 

Class: Classes are intended to represent those real-life items that we would like to manipulate within an application.

Object: A class provides a basis from which we can create specific instances of the entity the class models, better known as objects. For example, an employee management application may include an Employee class. we can then call upon this class to create and maintain specific instances.