gistfile1.php

<?php
// Setup a wp_query object that gets the pages with id 1,2 and 3
$query = new wp_query('post_type=page&post__in=1,2,3');
while ($query->have_posts() ) :
	$query->the_post();
	echo "<p>Found a post with title: " . get_the_title() . "</p>";
endwhile;
wp_reset_postdata();
?>