get_comment_id_fields( int|WP_Post|null $post = null ): string

Retrieves hidden input HTML for replying to comments.


$post int|WP_Post|null Optional
The post the comment is being displayed for.
Defaults to the current global post.

Default: null

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string Hidden input HTML for replying to comments.

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File: wp-includes/comment-template.php. View all references

function get_comment_id_fields( $post = null ) {
	$post = get_post( $post );
	if ( ! $post ) {
		return '';

	$post_id     = $post->ID;
	$reply_to_id = _get_comment_reply_id( $post_id );

	$comment_id_fields  = "<input type='hidden' name='comment_post_ID' value='$post_id' id='comment_post_ID' />\n";
	$comment_id_fields .= "<input type='hidden' name='comment_parent' id='comment_parent' value='$reply_to_id' />\n";

	 * Filters the returned comment ID fields.
	 * @since 3.0.0
	 * @param string $comment_id_fields The HTML-formatted hidden ID field comment elements.
	 * @param int    $post_id           The post ID.
	 * @param int    $reply_to_id       The ID of the comment being replied to.
	return apply_filters( 'comment_id_fields', $comment_id_fields, $post_id, $reply_to_id );

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Version Description
6.2.0 Renamed $post_id to $post and added WP_Post support.
3.0.0 Introduced.

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