Meetup random attendee selector

meetup_rand.php

<?php

$ug = 'Melbourne-PHP-Users-Group'; // Usergroup slug
$eid = '202990892'; // Event ID

$html = file_get_contents("http://www.meetup.com/$ug/events/$eid/");
preg_match_all("#<a href=\"http://www.meetup.com/$ug/members/[0-9]*\">([^<]*)</a>#", $html, $array);
$names = $array[1];
$winner = array_rand( array_unique( $names ));
echo $names[$winner] . "\n";