How to split data in php

You can use the explode function to split data in PHP.

$url = "http://www.domain.com/images.jpg";

$data = explode("/", $url);

$var = $data[count($data) - 1];

Adding a dynamic navigation bar

To add a dynamic navigation bar you can use following simple code for reference.
$navitems = array('filename1.php' => 'Page Name 1', 'filename2.php' => 'Page Name 2');

echo "<ul>\n";

foreach ($navitems AS $k => $v) { 
 echo '<li><a href="' . $k . '" title="' . $v . '">' . $v . "</a></li>\n";
}

echo "</ul>\n";

Adding an editable grid

When you are developing web applications there are situations in which you would like to add an editable grid to the application. Here is the one that can be used for free under GPL.
http://www.webismymind.be/editablegrid/