Autoincrement numeric variable in PHP on Refresh

Question

How do I use PHP to auto-increment a numeric variable on page refresh?

Foe example, for $i=10 there is an output of this:

Page has be

Answer 1

You would need to store its state somewhere, perhaps in the $_SESSION.

session_start();

$i = isset($_SESSION['i']) ? $_SESSION['i'] : 0;

echo ++$i;

$_SESSION['i'] = $i;