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Displays the numeric ID of the current post. This tag must be within The Loop.
<?php the_ID(); ?>
This tag has no parameters.
<p>Post Number: <?php the_ID(); ?></p>
Provides a unique anchor identifier to each post:
<h3 id="post-<?php the_ID(); ?>"><?php the_title(); ?></h3>
Note: In XHTML, the id attribute must not start with a digit. Since the_ID returns the post ID as numerical data, you should include at least one alphabetical character before using it in an id attribute, as in the example above.
Since: 0.71
the_ID() is located in wp-includes/post-template.php.
the_ID, the_title, the_title_attribute, single_post_title, the_title_rss, the_content, the_content_rss, the_excerpt, the_excerpt_rss, wp_link_pages, next_post_link, next_posts_link, previous_post_link, previous_posts_link, posts_nav_link, sticky_class, the_meta