<?php
session_start();
?>
<!DOCTYPE html>
<html>
<head>
<?php include 'css.htm';?>
</head>
<body>
<?php
$pageName = basename($_SERVER['PHP_SELF']); /* Returns The Current PHP File Name */
echo "<h3> " . $pageName . "</h3> ";
echo " <a href='../my-php/read_code.php?file=" . $pageName . "' target='_blank'> View Code </a>";
?>
<table background="images/bg.png" style="width:98%" style="height:640px">
<tr>
<td style="width:20%">
<br>Click on the links in the menu for more PHP examples.<br>
<?php include 'menu.php';?>
</td>
<td height="95%" bgcolor="white" style="vertical-align:top">
<h2>PHP Server Session</h2><br><br>
A session is a way to store information (in variables) to be used across multiple pages.
Unlike a cookie, the information is not stored on the users computer.<br><br>
<?php
// session start, set variables, echo variables, unset session, kill session
echo "session start, set session variables, echo session variables, unset session variables, kill session<br><br>";
echo "session started<br>";
$_SESSION["firstName"] = "Jamie";
$_SESSION["userID"] = "jamieD";
$_SESSION["acl"] = 100 ;
echo "<br>session array is created, variables set<br>";
print_r($_SESSION);
// Echo session variables
echo "<br>session variables set<br>";
echo "session variable firstName is set to " . $_SESSION["firstName"] . ".<br>";
echo "session variable userID is set to " . $_SESSION["userID"] . ".<br>";
echo "session variable acl is set to " . $_SESSION["acl"] . ".<br>";
// remove all session variables
session_unset();
echo "<br>Session variable unset<br>";
echo "session variable firstName is set to " . $_SESSION["firstName"] . ".<br>";
echo "session variable userID is set to " . $_SESSION["userID"] . ".<br>";
echo "session variable acl is set to " . $_SESSION["acl"] . ".<br>";
print_r($_SESSION);
// destroy the session
session_destroy();
echo "<br><br>Session destroid<br>";
echo "session variable firstName is set to " . $_SESSION["firstName"] . ".<br>";
echo "session variable userID is set to " . $_SESSION["userID"] . ".<br>";
echo "session variable acl is set to " . $_SESSION["acl"] . ".<br>";
print_r($_SESSION);
?>
<p>
<br><br> Here is the php code I used to create a server session, load session variables, output session variables to the page, and kill the session.
<br><br>
<img src="images/php_session.jpg" alt="php session."><br><br>
</td>
</tr>
</table>
</body>
</html>
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