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comment_author_email( int|WP_Comment $comment_ID )

Displays the email of the author of the current global $comment.

Description

Care should be taken to protect the email address and assure that email harvesters do not capture your commenter’s email address. Most assume that their email address will not appear in raw form on the site. Doing so will enable anyone, including those that people don’t want to get the email address and use it for their own means good and bad.

Parameters

$comment_ID

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

Source

File: wp-includes/comment-template.php 

function comment_author_email( $comment_ID = 0 ) {
	$comment      = get_comment( $comment_ID );
	$author_email = get_comment_author_email( $comment );

	/**
	 * Filters the comment author's email for display.
	 *
	 * @since 1.2.0
	 * @since 4.1.0 The `$comment_ID` parameter was added.
	 *
	 * @param string $author_email The comment author's email address.
	 * @param int    $comment_ID   The comment ID.
	 */
	echo apply_filters( 'author_email', $author_email, $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: get_comment_author_email()

Retrieves the email of the author of the current comment.
wp-includes/comment-template.php: author_email

Filters the comment author’s email for display.
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_email