Here is the final code we used for this section:
<?php
ini_set('display_errors', true);
error_reporting(E_ALL);
session_start();
?>
<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>Time for PHP</title>
<style>
body {
margin: 10em;
padding: 2em;
border: solid .2em green;
}
h1 {
text-align: center;
}
</style>
</head>
<body>
<h1>PHP Time</h1>
<?php
//formatted current time, with seconds for impatient visitors
function currentTime() {
$format = 'h:i A';
if (isset($_SESSION['lastVisit'])) {
$lastVisit = $_SESSION['lastVisit'];
if ($lastVisit > time()-60) {
$format = 'h:i:s A';
}
}
$_SESSION['lastVisit'] = time();
return date($format);
}
$now = currentTime();
?>
<p><em>Right now</em> is <?php echo $now; ?>. <?php echo $now; ?> is an important time, because <?php echo $now; ?> is the exact time you visited our wonderful page.</p>
</body>
</html>
