php - 如何在 PHP 中随机填充单个锦标赛淘汰赛而不重复？

Question

如果我有这个：

$players = array("A","B","C","D","E","F","G","H","I","J","L","M","N","O","P","Q");

我如何填充像这样的单个锦标赛淘汰赛，例如：

Matche 1: AxL
Matche 2: CxJ
Matche 3: HxQ
.
.
.
Matche 8: ExP

16 名玩家 = 8 场比赛

我也尝试这个和其他代码：

<?php

$players = array("A","B","C","D","E","F","G","H","I","J","L","M","N","O","P","Q");
shuffle ($players);

foreach($players as $key=>$value)
{
    echo $value.','.$value.'<br>';
}

?>

Answer 1

这应该适合你：

只是shuffle()您的数组，然后array_chunk()将其分成 2 组，例如

<?php

    $players = ["A","B","C","D","E","F","G","H","I","J","L","M","N","O","P","Q"];
    shuffle($players);
    $players = array_chunk($players, 2);

    foreach($players as $match => $player)
        echo "Match " . ($match+1) . ": " . $player[0] . "x" . $player[1] . "<br>";

?>

Answer 2

使用 suffle 函数将玩家的顺序随机化，并以 2 为步长读取数组

shuffle($players);

for ($x = 0; $x < count($players); $x += 2) {
  echo "Match " . (($x/2)+1) . ": " . $players[$x] . "x" . $players[$x+1] . "\n";
}