include_sample.php

include_01.php
<?php
    include("header.php");
    include("footer.php");
?>

header.php
<html>
<head>
    <title>Demo include()</title>
</head>
<body>
    <h1>Demo Portal</h1>
    Berisi informasi
<br>

footer.php
<p>&nbsp;</p>
<hr>
<small>&copy;2000 - By Lintang</small>
</body>
</html>