snippet from attendee list that shows WP user ID

<?php ?>
			<ol class="<?php espresso_template_css_class('attendee_list','attendee_list'); ?>">
				<?php
					$a_sql = "SELECT * FROM " . EVENTS_ATTENDEE_TABLE . " WHERE event_id='" . $event_id . "'";
					$a_sql .= $paid_only == 'true'? " AND (payment_status='Completed' OR payment_status='Pending' OR payment_status='Refund') ":'';
					$a_sql .= $sort;
					//echo $a_sql;
					$attendees = $wpdb->get_results($a_sql);
					foreach ($attendees as $attendee){

						/* GET THE USER BASED ON EMAIL */
						$the_user =  get_user_by( 'email', $attendee->email );
						//var_dump($the_user);


						$id = $attendee->id;
						$lname = $attendee->lname;
						$fname = $attendee->fname;
						$city = $attendee->city;
						$state = $attendee->state;
						$country = $attendee->state;
						$email = $attendee->email;
						$gravatar = $show_gravatar == 'true'? get_avatar( $email, $size = '100', $default = 'http://www.gravatar.com/avatar/' ) : '';
						$city_state = $city != '' || $state != '' ? '<br />' . ($city != '' ? $city :'') . ($state != '' ? ', ' . $state :' ') :'';

						//These are example variables to show answers to questions
						//$custom_question_1 = '<br />'.do_shortcode('[EE_ANSWER q="12" a="'.$id.'"]');
						//$custom_question_2 = '<br />'.do_shortcode('[EE_ANSWER q="13" a="'.$id.'"]');

				?>
						<li class="<?php espresso_template_css_class('attendee_details','attendee_details'); ?>"> (<?php echo $the_user->ID; ?>) <span class="<?php espresso_template_css_class('espresso_attendee','espresso_attendee'); ?>"><?php echo $gravatar ?><?php echo stripslashes_deep($fname . ' ' . $lname) . $city_state .'</p>'; ?> </span>
							<div class="clear"></div>
						</li>