WP_Comments_List_Table::extra_tablenav() WordPress Method

	protected function extra_tablenav( $which ) {
		global $comment_status, $comment_type;
		static $has_items;

		if ( ! isset( $has_items ) ) {
			$has_items = $this->has_items();
		}

		echo '<div class="alignleft actions">';

		if ( 'top' === $which ) {
			ob_start();

			$this->comment_type_dropdown( $comment_type );

			/**
			 * Fires just before the Filter submit button for comment types.
			 *
			 * @since 3.5.0
			 */
			do_action( 'restrict_manage_comments' );

			$output = ob_get_clean();

			if ( ! empty( $output ) && $this->has_items() ) {
				echo $output;
				submit_button( __( 'Filter' ), '', 'filter_action', false, array( 'id' => 'post-query-submit' ) );
			}
		}

		if ( ( 'spam' === $comment_status || 'trash' === $comment_status ) && $has_items
			&& current_user_can( 'moderate_comments' )
		) {
			wp_nonce_field( 'bulk-destroy', '_destroy_nonce' );
			$title = ( 'spam' === $comment_status ) ? esc_attr__( 'Empty Spam' ) : esc_attr__( 'Empty Trash' );
			submit_button( $title, 'apply', 'delete_all', false );
		}

		/**
		 * Fires after the Filter submit button for comment types.
		 *
		 * @since 2.5.0
		 * @since 5.6.0 The `$which` parameter was added.
		 *
		 * @param string $comment_status The comment status name. Default 'All'.
		 * @param string $which          The location of the extra table nav markup: 'top' or 'bottom'.
		 */
		do_action( 'manage_comments_nav', $comment_status, $which );

		echo '</div>';
	}