the_ID() WP 0.71

Display the ID of the current post in the WordPress Loop.

Post ID in the loop can be also obtained through $post->ID. Sometimes it's easier and there is no unnecessary call of the function.

Works based on: get_the_ID()

✈ 1 time = 0.000403s = fast | 50000 times = 0.18s = very fast | PHP 7.1.2, WP 4.7.3

No Hooks.

Nothing (null). The post ID is displayed immediately.

<?php the_ID(); ?>

<p>Post Number: <?php the_ID(); ?></p>

<h3 id="post-<?php the_ID(); ?>"><?php the_title(); ?></h3>

Now the link to this anchor will be: http://site.com/link_to_post#post-465

in XHTML, the id attribute of an HTML tag cannot start with a digit. Therefore, you need to add at least one letter before the_ID().

<?php
function the_ID() {
	echo get_the_ID();
}