What potential issue is the user experiencing with the counter script in PHP?

The potential issue the user is experiencing with the counter script in PHP is that the counter variable is not persisting between page loads, causing it to reset to 1 every time the page is refreshed. To solve this issue, you can use sessions to store and increment the counter variable.

<?php
session_start();

if(isset($_SESSION['counter'])) {
    $_SESSION['counter']++;
} else {
    $_SESSION['counter'] = 1;
}

echo "You have visited this page " . $_SESSION['counter'] . " times.";

?>