the_shortlink() WordPress Function

function the_shortlink( $text = '', $title = '', $before = '', $after = '' ) {
	$post = get_post();

	if ( empty( $text ) ) {
		$text = __( 'This is the short link.' );
	}

	if ( empty( $title ) ) {
		$title = the_title_attribute( array( 'echo' => false ) );
	}

	$shortlink = wp_get_shortlink( $post->ID );

	if ( ! empty( $shortlink ) ) {
		$link = '<a rel="shortlink" href="' . esc_url( $shortlink ) . '" title="' . $title . '">' . $text . '</a>';

		/**
		 * Filters the short link anchor tag for a post.
		 *
		 * @since 3.0.0
		 *
		 * @param string $link      Shortlink anchor tag.
		 * @param string $shortlink Shortlink URL.
		 * @param string $text      Shortlink's text.
		 * @param string $title     Shortlink's title attribute.
		 */
		$link = apply_filters( 'the_shortlink', $link, $shortlink, $text, $title );
		echo $before, $link, $after;
	}
}
Uses	Description
wp-includes/l10n.php:__()	Retrieve the translation of $text.
wp-includes/formatting.php:esc_url()	Checks and cleans a URL.
wp-includes/link-template.php:wp_get_shortlink()	Returns a shortlink for a post, page, attachment, or site.
wp-includes/link-template.php:the_shortlink	Filters the short link anchor tag for a post.
wp-includes/plugin.php:apply_filters()	Calls the callback functions that have been added to a filter hook.
wp-includes/post-template.php:the_title_attribute()	Sanitizes the current title when retrieving or displaying.
wp-includes/post.php:get_post()	Retrieves post data given a post ID or post object.