Variables within variables

Hi,

is there a way to have a variable within another variable
for example
i have a variable

$noItems = ‘3’;

$paragraph = ‘you have $noItems in your basket’;

if i do echo $paragraph

it returns
you have $noItems in your basket

how do i set this up so that it picks up the value assigned to variable $noItems

thanks

$paragraph = “you have $noItems in your basket”;
or
$paragraph = ‘you have ‘.$noItems.’ in your basket’;