Question

我在这个阵列中有12个项目：

$item[1] = array('pseudo' => 'Item1', 'name' => 'apple', 'rarity' => '1', 'id' => '1' );
$item[2] = array('pseudo' => 'Item2', 'name' => 'banana', 'rarity' => '30', 'id' => '8' );
$item[3] = array('pseudo' => 'Item3', 'name' => 'cherry', 'rarity' => '23', 'id' => '12' );
$item[4] = array('pseudo' => 'Item4', 'name' => 'pear', 'rarity' => '27', 'id' => '18' );
$item[5] = array('pseudo' => 'Item5', 'name' => 'watermelon', 'rarity' => '70', 'id' => '14' );
$item[6] = array('pseudo' => 'Item6', 'name' => 'orange', 'rarity' => '100', 'id' => '17' );

我需要的是随机打印6件物品中的1件但受其稀有度的影响，所以越罕见的是它发生的次数越少，稀有度为1-100。我如何使用PHP实现这一目标？

Answer 1

您可以根据它的稀有程度将每个项目键的x个副本添加到数组中。例如：

$pool = array();

foreach ($items as $key => $value) {

    // Subtract the items rarity from 101,
    // generating 100 occurences for the most common
    // and 1 occurence for the most rare
    $occurrences = 101 - $value['rarity'];
    for ($i = 0; $i < $occurrences; $i++) { 

        // Add the items key $occurrences times
        array_push($pool, $key);
    }
}

$weighed_item = $items[array_rand($pool)];

事件的发生率

1 个答案: