Specify page by using its path. Example path is
blog for the blog page.
<front> is the front page.
<current> is the current page. Precede with http:// for an external URL. Leave empty to redirect to a default page. If the PHP option is chosen, enter PHP code between
<?php ?>. It should return either a string value or an array of params that the
url($path = '', array $options = array()) function will understand, for example.
<?php return array('blog', array('fragment' => 'overlay=admin/config', ), ); ?>. For more information, see the online API entry for
url function. Note that executing incorrect PHP code can break your Drupal site.