WordPress at a glance
function is not described

get_comment_author_IP() WP 1.5.0

Retrieve the IP address of the author of the current comment.

  • Since 4.4.0 Added the ability for $comment_ID to also accept a WP_Comment object.
Hooks in function
Return

String. Comment author's IP address.

Usage

get_comment_author_IP( $comment_ID );
$comment_ID(int/WP_Comment)
WP_Comment or the ID of the comment for which to get the author's IP address.
Default: current comment

Code of get comment author IP: wp-includes/comment-template.php WP 5.2.2

<?php
function get_comment_author_IP( $comment_ID = 0 ) {
	$comment = get_comment( $comment_ID );

	/**
	 * Filters the comment author's returned IP address.
	 *
	 * @since 1.5.0
	 * @since 4.1.0 The `$comment_ID` and `$comment` parameters were added.
	 *
	 * @param string     $comment_author_IP The comment author's IP address.
	 * @param int        $comment_ID        The comment ID.
	 * @param WP_Comment $comment           The comment object.
	 */
	return apply_filters( 'get_comment_author_IP', $comment->comment_author_IP, $comment->comment_ID, $comment );
}