php variables in strings

Variables are “containers” for storing information.

Creating (Declaring) PHP Variables

In PHP, a variable starts with the $ sign, followed by the name of the variable:

$x = 5; 
$y = "John";

In the example above, the variable $x will hold the value 5, and the variable $y will hold the value "John".

Note: When you assign a text value to a variable, put quotes around the value.

Note: Unlike other programming languages, PHP has no command for declaring a variable. It is created the moment you first assign a value to it.

Think of variables as containers for storing data.