Get all WordPress posts of a certain type that have been published.

functions.php

$query = new WP_Query( array(
	'post_type' => 'event_type',
	'post_status' => 'publish',
	'nopaging' => true
) );
 
while ( $query->have_posts() ) : $query->the_post();
	// Do something with the post here...
endwhile;
wp_reset_postdata();