comment_notification_headers

Filter Hook

Description

Filters the comment notification email headers.

Hook Information

File Location	`wp-includes/pluggable.php` View on GitHub
Hook Type	Filter
Line Number	`1778`

Hook Parameters

Type	Name	Description
`string`	`$message_headers`	Headers for the comment notification email.
`string`	`$comment_id`	Comment ID as a numeric string.

Usage Examples

Basic Usage

<?php
// Hook into comment_notification_headers
add_filter('comment_notification_headers', 'my_custom_filter', 10, 2);

function my_custom_filter($message_headers, $comment_id) {
    // Your custom filtering logic here
    return $message_headers;
}

Source Code Context

wp-includes/pluggable.php:1778 - How this hook is used in WordPress core

<?php
1773  		 * @since 1.5.2
1774  		 *
1775  		 * @param string $message_headers Headers for the comment notification email.
1776  		 * @param string $comment_id      Comment ID as a numeric string.
1777  		 */
1778  		$message_headers = apply_filters( 'comment_notification_headers', $message_headers, $comment->comment_ID );
1779  
1780  		foreach ( $emails as $email ) {
1781  			$user = get_user_by( 'email', $email );
1782  
1783  			if ( $user ) {

PHP Documentation

<?php
/**
		 * Filters the comment notification email headers.
		 *
		 * @since 1.5.2
		 *
		 * @param string $message_headers Headers for the comment notification email.
		 * @param string $comment_id      Comment ID as a numeric string.
		 */

Quick Info

Hook Type: Filter
Parameters: 2
File: wp-includes/pluggable.php

Links

WordPress Docs View Source Code Search Examples

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