glt のあれ

gistfile1.aw

<?php
$cards = range(1,99);
$get_cards = array();

$count = 0;
while(++$count) {
    $get_cards[$cards[array_rand($cards, 1)]] = 1;

    if (!array_diff($cards, array_keys($get_cards))) {
        break;
    }
}

echo $count;