public function get_page_options() : array {

		// Show invalid option, if no pages are created.
		$page_options = [ '' => esc_html__( 'You must create a page before using this functionality', 'event-tickets-plus' ) ];

		$pages = get_pages();

		if ( $pages ) {
			$page_options = [ '' => esc_html__( 'Choose a page or leave blank.', 'event-tickets-plus' ) ];

			foreach ( $pages as $page ) {
				$page_options[ $page->ID ] = $page->post_title;
			}
		}

		return $page_options;
	}