Data types in PHP
Data types define the types of data a variable can store. Variables can store data of different types, and different data types can do different things. PHP allows eight different type of data […]

We have seen echo statement quite frequently in PHP codes of previous sections. It is the most basic way of displaying output in PHP.

However, there are two basic ways to get output in PHP:-

echo […]

Variable scopes in PHP
Scope of a variable is defined as its extent in program within which it can be accessed, i.e., the scope of a variable is the portion of the program within which it is visible or can be […]

Variables in PHP
Variables in a program are used to store some values or data that can be used later in a program. PHP has its own way of declaring and storing variables.

There are few rules that need to be […]

In PHP, all keywords (e.g. if, else, while, echo, etc.), classes, functions, and user-defined functions are NOT case-sensitive.

In the example below, all three echo statements below are legal (and […]

A comment in PHP code is a line that is not read/executed as part of the program. Its only purpose is to be read by someone who is looking at the code.

Comments can be used to:

Let others understand what […]