update the price option correctly

main.php

<?php

if (!function_exists('espresso_ticket_information')) {

	function espresso_ticket_information($atts) {
		global $wpdb;
		extract($atts);
		$price_option = "{$price_option}";
		$type = "{$type}";

		switch ($type) {
			case 'ticket':
			default:
				$sql = $wpdb->get_results("SELECT * FROM " . EVENTS_PRICES_TABLE . " WHERE id ='" . $price_option . "'");
				$num_rows = $wpdb->num_rows;
				if ($num_rows > 0) {
					if (function_exists('espresso_members_installed') && is_user_logged_in()==true) {
						return $wpdb->last_result[0]->member_price_type;
					}else{
						return $wpdb->last_result[0]->price_type;
					}
                }
				break;
		}
	}

}