Hellow,
try a demo
index.php
<?php
session_start();
$_SESSION['page']='home';
echo 'Currently on page: '.$_SESSION['page'];
echo "<br>i am on home page";
?>
<a href="first.php">First</a>
<a href="second.php">Second</a>
<a href="third.php">Third</a>
first.php
<?php
session_start();
if(isset($_SESSION['page']))
{
if($_SESSION['page']=='home')
$_SESSION['page'].='-> first';
}
echo 'Currently on page: '.$_SESSION['page'];
echo "<br>you are on first page";
?>
<a href="fchild.php">First child</a>
second.php
<?php
session_start();
if(isset($_SESSION['page']))
{
if($_SESSION['page']=='home')
$_SESSION['page'].='-> second';
}
echo 'Currently on page: '.$_SESSION['page'];
echo "<br>you are on second page";
?>
third.php
<?php
session_start();
if(isset($_SESSION['page']))
{
if($_SESSION['page']=='home')
$_SESSION['page'].='-> third';
}
echo 'Currently on page: '.$_SESSION['page'];
echo "<br/>you are on third page";
?>
fchild.php
<?php
session_start();
if(isset($_SESSION['page']))
{
if($_SESSION['page']=='home-> first')
$_SESSION['page'].='-> first child';
}
echo 'Currently on page: '.$_SESSION['page'];
echo "<br/>you are on first's child page";
?>
This is a very basic demo.usually what you are trying to achieve is caleld breadcrumps and it show which dir you are trying to fetch .a good link to share is below
http://www.zend.com/zend/spotlight/breadcrumb28.php