How to Create/Declare a Variable in PHP in 5min 👨‍💻 [BEGINNER TUTORIAL] 👨‍💻

Published: 28 December 2022
on channel: Numelion Web

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How to declare a variable in PHP? This second video tutorial on the web programming language allows us to discover one of the first elements to master: variables. But let's start at the beginning: what is a variable in programming?

A PHP variable is a container for storing data. Variables can be of different types; you can store elements such as integers, floating-point numbers, strings, and arrays. Variables are used to store information that can be used later in your code.

You can think of a variable as a box that contains a value. When you create a variable, you give it a name and a value. The name is like the label on the box, and the value is what's inside the box. You can use the variable name to access the value stored in the variable.

PHP variables are case-sensitive, meaning that `$mavariable` is different from `$MaVariable`.

A variable name can begin with a letter or an underscore (_), followed by any number of letters, numbers, or underscores.

Here are some examples of valid variable names in PHP:

$my_variable
$_my_variable
$my_variable_1
$my_first_variable

You can also watch the first video in this series on creating a PHP script:

Video: Creating a PHP Script: • Créer un Script en PHP 👨‍💻 [TUTORIEL POUR ...

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#php #variable #programming

Summary:
00:00 - Introduction
00:30 - Creating a Variable
01:05 - What is a Variable Used For?

01:27 - Displaying the result
02:20 - Storing a number
03:10 - Using a mathematical operator
04:10 - Variable with a decimal digit
05:00 - Your opinion matters

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