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функция не описана

WC_AJAX::add_order_note() public WC 1.0

Add order note via ajax.

{} Это метод класса: WC_AJAX{}

Хуки из метода
Возвращает

Null. Ничего.

Использование

$result = WC_AJAX::add_order_note();

Код WC_AJAX::add_order_note() WC 4.7.1

<?php
public static function add_order_note() {
	check_ajax_referer( 'add-order-note', 'security' );

	if ( ! current_user_can( 'edit_shop_orders' ) || ! isset( $_POST['post_id'], $_POST['note'], $_POST['note_type'] ) ) {
		wp_die( -1 );
	}

	$post_id   = absint( $_POST['post_id'] );
	$note      = wp_kses_post( trim( wp_unslash( $_POST['note'] ) ) ); // phpcs:ignore WordPress.Security.ValidatedSanitizedInput.InputNotSanitized
	$note_type = wc_clean( wp_unslash( $_POST['note_type'] ) );

	$is_customer_note = ( 'customer' === $note_type ) ? 1 : 0;

	if ( $post_id > 0 ) {
		$order      = wc_get_order( $post_id );
		$comment_id = $order->add_order_note( $note, $is_customer_note, true );
		$note       = wc_get_order_note( $comment_id );

		$note_classes   = array( 'note' );
		$note_classes[] = $is_customer_note ? 'customer-note' : '';
		$note_classes   = apply_filters( 'woocommerce_order_note_class', array_filter( $note_classes ), $note );
		?>
		<li rel="<?php echo absint( $note->id ); ?>" class="<?php echo esc_attr( implode( ' ', $note_classes ) ); ?>">
			<div class="note_content">
				<?php echo wp_kses_post( wpautop( wptexturize( make_clickable( $note->content ) ) ) ); ?>
			</div>
			<p class="meta">
				<abbr class="exact-date" title="<?php echo esc_attr( $note->date_created->date( 'y-m-d h:i:s' ) ); ?>">
					<?php
					/* translators: $1: Date created, $2 Time created */
					printf( esc_html__( 'added on %1$s at %2$s', 'woocommerce' ), esc_html( $note->date_created->date_i18n( wc_date_format() ) ), esc_html( $note->date_created->date_i18n( wc_time_format() ) ) );
					?>
				</abbr>
				<?php
				if ( 'system' !== $note->added_by ) :
					/* translators: %s: note author */
					printf( ' ' . esc_html__( 'by %s', 'woocommerce' ), esc_html( $note->added_by ) );
				endif;
				?>
				<a href="#" class="delete_note" role="button"><?php esc_html_e( 'Delete note', 'woocommerce' ); ?></a>
			</p>
		</li>
		<?php
	}
	wp_die();
}