Random draw

draw.php

<?php
/**
 * Random draw, "interactively" reducing the original array so each participant is drawn only once.
 * @author Er Galvão Abbott <galvao@galvao.eti.br>
 */

$rounds = 3;

$eagerParticipants = array('Ad Rock', 'Mike D', 'MCA', 'Chuck D', 'Flavor Flav', 'Jammaster Jay', 'Terminator X');
$luckyBastards = array();

do { 
    shuffle($eagerParticipants);
    $rand = mt_rand(0, (count($eagerParticipants) - 1));

    $luckyBastards[] = $eagerParticipants[$rand];

    $eagerParticipants = array_diff($eagerParticipants, $luckyBastards);

    $rounds--;

} while ($rounds > 0);

echo "\nWinners:\n" . implode("\n", $luckyBastards);
echo "\n\nWeiners:\n" . implode("\n", $eagerParticipants);
?>