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get_the_ID()

Retrieve the ID of the current item in the WordPress Loop.

Return

(int|false) The ID of the current item in the WordPress Loop. False if $post is not set.

Source

File: wp-includes/post-template.php 

function get_the_ID() { // phpcs:ignore WordPress.NamingConventions.ValidFunctionName.FunctionNameInvalid
	$post = get_post();
	return ! empty( $post ) ? $post->ID : false;
}

Uses

Uses Description
wp-includes/post.php: get_post()

Retrieves post data given a post ID or post object.

Used By

Used By Description
wp-admin/includes/dashboard.php: wp_dashboard_recent_posts()

Generates Publishing Soon and Recently Published sections.
wp-includes/general-template.php: wp_get_archives()

Display archive links based on type and format.
wp-includes/link-template.php: get_post_comments_feed_link()

Retrieves the permalink for the post comments feed.
wp-includes/post-template.php: prepend_attachment()

Wrap attachment in paragraph tag before content.
wp-includes/post-template.php: the_ID()

Display the ID of the current item in the WordPress Loop.
wp-includes/media.php: wp_video_shortcode()

Builds the Video shortcode output.
wp-includes/media.php: wp_audio_shortcode()

Builds the Audio shortcode output.
wp-includes/post.php: is_sticky()

Determines whether a post is sticky.
wp-includes/post.php: get_post_custom()

Retrieve post meta fields, based on post ID.
wp-includes/comment-template.php: get_comment_id_fields()

Retrieves hidden input HTML for replying to comments.
wp-includes/comment-template.php: wp_list_comments()

Displays a list of comments.
wp-includes/comment-template.php: comment_form()

Outputs a complete commenting form for use within a template.
wp-includes/comment-template.php: get_trackback_url()

Retrieves the current post’s trackback URL.
wp-includes/comment-template.php: comments_popup_link()

Displays the link to the comments for the current post ID.

Changelog

Version Description
2.1.0 Introduced.

© 2003–2019 WordPress Foundation
Licensed under the GNU GPLv2+ License.
https://developer.wordpress.org/reference/functions/get_the_id