Wordpress Whiteboard Framework Query

Question

I am new to programming and web designing. I need a little help. Whiteboard framework has in the index.php file a code line:

<?php if ( ! dynamic_sidebar( 'Alert' ) ) : ?>
<!--Wigitized 'Alert' for the home page -->
<?php endif ?>

What is it for?

Answer 1

dynamic_sidebar() is a WordPress function. I believe the code within the if statement will run if the sidebar named "Alert" is not found or does not contain widgets.