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comment_author_url( int|WP_Comment $comment_ID )

Displays the URL of the author of the current comment, not linked.

Parameters

$comment_ID

(int|WP_Comment) (Optional) WP_Comment or the ID of the comment for which to print the author's URL. Default current comment.

Source

File: wp-includes/comment-template.php 

function comment_author_url( $comment_ID = 0 ) {
	$comment    = get_comment( $comment_ID );
	$author_url = get_comment_author_url( $comment );

	/**
	 * Filters the comment author's URL for display.
	 *
	 * @since 1.2.0
	 * @since 4.1.0 The `$comment_ID` parameter was added.
	 *
	 * @param string $author_url The comment author's URL.
	 * @param int    $comment_ID The comment ID.
	 */
	echo apply_filters( 'comment_url', $author_url, $comment->comment_ID );
}

Uses

Uses Description
wp-includes/plugin.php: apply_filters()

Calls the callback functions that have been added to a filter hook.
wp-includes/comment-template.php: comment_url

Filters the comment author’s URL for display.
wp-includes/comment-template.php: get_comment_author_url()

Retrieves the URL of the author of the current comment, not linked.
wp-includes/comment.php: get_comment()

Retrieves comment data given a comment ID or comment object.

Changelog

Version Description
4.4.0 Added the ability for $comment_ID to also accept a WP_Comment object.
0.71 Introduced.

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