Question

我希望创建一个小的脚本来生成一对用户。

用户位于一个数组中，因此我使用shuffle将它们随机配对。

我的问题是我想在最终结果中避免/排除一些用户对。

所以我有第一部分来洗牌用户：

<?php 

$user[] = "Miaa";
$user[] = "Xavier";
$user[] = "Antoine";
$user[] = "Marie-Ange";
$user[] = "Claire";
$user[] = "Orlando";
$user[] = "Camille";
$user[] = "Chloé";
$user[] = "Audrey";
$user[] = "*";

$users = count($user);
// Shuffle user
shuffle($user);// You get a shuffled array

// Pair the adjacent user
for ( $index = 0; $index < $users; $index +=2) {

    // Pair $user[$index ] with $user[$index +1]
    echo $user[$index ] . " <=> " . $user[$index+1] . "\n";
}

?>

这是我的代码到沙箱的链接=> http://sandbox.onlinephpfunctions.com/code/6ef04e99946849606544493e64e317206209c10c

我试图添加一个if语句，但没有成功

$user[$index[0]] == "Miaa" && $user[$index[1]] == "Xavier"

Answer 1

u可以获取所有组合，然后通过随机键获取它：）

<?php
$user[] = "Miaa";
$user[] = "Xavier";
$user[] = "Antoine";
$user[] = "Marie-Ange";
$user[] = "Claire";
$user[] = "Orlando";
$user[] = "Camille";
$user[] = "Chloé";
$user[] = "Audrey";
$user[] = "*";

$shufla = [];

foreach ($user as $us1) {
    foreach ($user as $us2) {
        if (
            ("Miaa" === $us1 and "Xavier" === $us2) ||
            ("Miaa" === $us2 and "Xavier" === $us1) ||
            ($us1 === $us2)
        ) continue;
        $shufla[] = $us1 . " <=> ". $us2;
    }
}

var_dump($shufla[mt_rand(0, count($shufla) - 1)]);

Answer 2

    $firstGroup = [
        "Miaa",
        "Xavier"
    ];

    $secondGroup = [
        "Antoine",
        "Marie-Ang",
        "Claire",
        "Orlando",
        "Camille",
        "Chloé",
        "Audrey",
        "*",
    ];

    shuffle($secondGroup);

    // calculate how many users should be moved to first group
    $usersToMove = (count($secondGroup) + 2) / 2 - 2;

    //move random users to first group
    for ($i = 0; $i < $usersToMove; $i++) {
        $firstGroup[] = array_shift($secondGroup);
    }

    for ($i = 0; $i < count($firstGroup); $i++) {
        echo  $firstGroup[$i] . ' <=> ' . $secondGroup[$i];  
    }

Answer 3

首先，我创建了变量$err，以检测是否找到了该对，然后重新开始循环。重新启动循环时，数组$res的结果为空。我最终解析了数组的结果。

<?php 

$user[] = "Miaa";
$user[] = "Xavier";
$user[] = "Antoine";
$user[] = "Marie-Ange";
$user[] = "Claire";
$user[] = "Orlando";
$user[] = "Camille";
$user[] = "Chloé";
$user[] = "Audrey";
$user[] = "*";

$users = count($user);
// Shuffle user
shuffle($user);// You get a shuffled array

// Pair the adjacent user
$err = 1;
$res = array();
while($err > 0){
    $err--;
    for ( $index = 0; $index < $users; $index +=2) {
        if(($user[$index ] == "Miaa" && $user[$index+1]  == "Xavier") || ($user[$index ] == "Xavier" && $user[$index+1]  == "Miaa")){
            $err = 1;
            $users = count($user);
            shuffle($user);
            unset($res);
            $res = array();
        }else{
            //echo $user[$index ] . " <=> " . $user[$index+1] . "\n";
            $res[] = [$user[$index ], $user[$index+1]];
        }
        // Pair $user[$index ] with $user[$index +1]

    }
}
$nb_res = count($res);
while($nb_res > 0){
    $nb_res--;
    $user1 = $res[$nb_res][0];
    $user2 = $res[$nb_res][1];
    echo $user1 . " <=> " . $user2 . "\n";
}

?>

随机排列数组中的随机对，但排除对的可能性

3 个答案: