How can the target attribute be used to navigate out of a frameset in PHP?

When working with framesets in PHP, the target attribute can be used to specify where the linked content should be displayed. To navigate out of a frameset, you can set the target attribute to "_top" in the anchor tag linking to the external page. This will load the linked content in the full browser window, effectively breaking out of the frameset.

<a href="external_page.php" target="_top">Navigate to External Page</a>