gistfile1.aw

<?php
function subpage_peek() {
	global $post;
	$args = array(
		'post_parent' => $post->ID,
		'post_type' => 'page'
	);
	$subpages = new WP_query($args);
	if ($subpages->have_posts()) :
		$output = '<ul>';
		while ($subpages->have_posts()) : $subpages->the_post();
			$output .= '<li><strong><a href="'.get_permalink().'">'.get_the_title().'</a></strong>
						<p>'.get_the_excerpt().'<br />
						<a href="'.get_permalink().'">続きを読む →</a></p></li>';
		endwhile;
		$output .= '</ul>';
	else :
		$output = '<p>ありません</p>';
	endif;

	wp_reset_postdata();
	return $output;
}
add_shortcode('subpage_peek', 'subpage_peek');
?>