session.php
Source of session.php
<?php session_start() ?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html lang="EN" dir="ltr" xmlns="http://www.w3.org/1999/xhtml">
<head>
<title>
persistence demo
</title>
</head>
<body>
<h1>session.php</h1>
<?php
if (isset($_SESSION["counter"])){
$counter = $_SESSION["counter"];
} else {
$counter = 0;
} // end if
$counter++;
print "<h2>Counter: $counter</h2> \n";
//store new data in counter
$_SESSION["counter"] = $counter;
print <<< HERE
<form action = ""
method = "post">
<p>
<button type = "submit">
count
</button>
</p>
</form>
HERE;
?>
</body>
</html>