Page title changer

Have you ever wondered how sites (like this one) have a different page title for each page?

Here is how you do it:

Lets say you have 3 pages: index.php, about.php and contact.php. You need to have the page include system working so we can use the same variable for the page title changer.

< !DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>My website > < ? 	$page=$_GET['page']; //page title changer
						if ($page=="about"){ //if the page you are viewing is about.php it shows "About me" text in the page title
							echo "About me"; //shows "About me" text on page title
						}elseif($page=="contact"){ //same as above but with contact.php
							echo "Contact me"; //same as above but with "Contact me" text on page title
						}else{
							echo "Home"; //shows "Home" text on page title
						}
					?></title>
</head>
<body>
<a href="http://www.mywebsite.com">home</a> <!-- Menu link -->
<a href="?page=about">about me</a> <!-- Menu link for about page -->
<a href="?page=contact">contact me</a> <!-- Menu link for contact page-->
< ? 	$page=$_GET['page']; //include system. loads the file when you click the link
	if ($page=="about"){ //if you click the about link it will load about.php
		include('about.php'); //it loads about.php inside the index.php
	}elseif($page=="contact"){ //same as above but with contact
		include('contact'); //same as above but with contact.php
	}else{
		include('home.php'); //loads home.php if no link is clicked or if did not find any of the links/files above
	}
?>
</body>
</html>