add_comment_meta( int $comment_id, string $meta_key, mixed $meta_value, bool $unique = false )

Add meta data field to a comment.


Parameters

$comment_id

(Required) Comment ID.

$meta_key

(Required) Metadata name.

$meta_value

(Required) Metadata value.

$unique

(Optional) Whether the same key should not be added.

Default value: false


Return

(int|bool) Meta ID on success, false on failure.


Source

File: wp-includes/comment.php

function add_comment_meta($comment_id, $meta_key, $meta_value, $unique = false) {
	$added = add_metadata( 'comment', $comment_id, $meta_key, $meta_value, $unique );
	if ( $added ) {
		wp_cache_set( 'last_changed', microtime(), 'comment' );
	}
	return $added;
}


Changelog

Changelog
Version Description
WP-2.9.0 Introduced.