How to use PHP variable

In this article I am going to explain PHP variable.
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Use PHP Variable

PHP variables are used to hold values or expressions.

A variable can have short name in PHP, like a.

Rules for PHP variable names:

PHP variable is start $ sign.

PHP variable name must begin with a letter or the underscore.

PHP variable name should not have spaces.

This is a case sensitive (a and A are different variable).

Creating PHP Variables

PHP has no command for declaring a variable.

$myBike="Volvo";

The variable myBike will hold the value Volvo.

Let's create a variable containing a string, and a variable containing a number:

<?php
$txt="Hello World!";
$x=16;
?>

PHP is a Loosely Typed Language

A variable does not need to be declared before adding a value in PHP.

PHP automatically converts the variable to the correct data type.

In a strongly typed programming language, we have to declare the type and name of the variable before using it.

Further Readings

You may also want to read these related articles :here

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