PHP variable

A variable is a name for a data storage location. A variable contains a value.

In PHP, variables begin with a dollar sign ($).

Some variables are built into PHP.

Other variables are defined by the programmer.

Example

<?php
$msg = "Hello World";
echo $msg;
?>

The above example sets the variable named $msg equal to the value "Hello World". (The equal sign (=) is the PHP assignment operator.

The echo keyword then displays "Hello World" for the user.

See also

• PHP assignment operator
• PHP code
• PHP code island
• PHP text generation
• Variable (computer science)

External links

• Variables Table of Contents @ php.net
• Variables Basics @ php.net
• PHP Variables @ w3schools.com

PHP