| 
<?php
 require_once(dirname(__FILE__).'/hierarchy.class.php');
 
 // Create an array of item hierarchicaly
 $list = array(
 'a' => array(
 'b' => false,
 'c' => false,
 'd' => false),
 'e' => array(
 'f' => false,
 'g' => false,
 'h' => array(
 'i' => false,
 'j' => false,
 'k' => false,
 ),
 'l' => false
 )
 );
 
 $list_hierarchicaly = hierarchy::print_list($list);
 
 header('Content-type: text/html; charset=UTF-8');
 echo <<<HTML
 <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
 <html>
 <head>
 <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" >
 <title>Example</title>
 <link rel="stylesheet" type="text/css" media="all" href="hierarchy.css.php" />
 </head>
 <body>
 <h1>Simple List</h1>
 <div style="border: 1px solid red; padding: 0 1em;">
 {$list_hierarchicaly}
 </div>
 <p>You can print a list hierarchicaly.</p>
 </body>
 </html>
 HTML;
 
 |