PHP for WordPress  --  Loops

 Official documentation WP Loop (Please Read)

<?php
if ( have_posts() ) :
    while ( have_posts() ) : the_post();
        the_title( '<h2>', '</h2>' );
        the_post_thumbnail();
        the_excerpt();
   endwhile;
else:
   _e( 'Sorry, no posts matched your criteria.', 'textdomain' );
endif;

This was an example of the famous WP loop.

Below are noted for the PHP loops

---with the break, we go out from the loop