Question

我想创建此输出：

LG
LG#Spain
LG#Spain#Paypal
LG#Spain#Paypal#Male
LG#Spain#Paypal#Female
LG#Spain#CCard
LG#Spain#CCard#Male
LG#Spain#CCard#Female
LG#Croatia
LG#Croatia#Paypal
LG#Croatia#Paypal#Male
LG#Croatia#Paypal#Female
LG#Croatia#CCard
LG#Croatia#CCard#Male
LG#Croatia#CCard#Female
LG#Czech
LG#Czech#Paypal
LG#Czech#Paypal#Male
LG#Czech#Paypal#Female
LG#Czech#CCard
LG#Czech#CCard#Male
LG#Czech#CCard#Female
Sony
Sony#Spain
Sony#Spain#Paypal
Sony#Spain#Paypal#Male
Sony#Spain#Paypal#Female
Sony#Spain#CCard
Sony#Spain#CCard#Male
Sony#Spain#CCard#Female
Sony#Croatia
Sony#Croatia#Paypal
Sony#Croatia#Paypal#Male
Sony#Croatia#Paypal#Female
Sony#Croatia#CCard
Sony#Croatia#CCard#Male
Sony#Croatia#CCard#Female
Sony#Czech
Sony#Czech#Paypal
Sony#Czech#Paypal#Male
Sony#Czech#Paypal#Female
Sony#Czech#CCard
Sony#Czech#CCard#Male
Sony#Czech#CCard#Female

和我的代码：

<?php

$delimiter = '#';

$keys = ['Brand','Country','Method','Gender'];
$arr[$keys[0]] = ['LG','Sony'];
$arr[$keys[1]] = ['Spain','Croatia','Czech'];
$arr[$keys[2]] = ['Paypal','CCard'];
$arr[$keys[3]] = ['Male','Female'];

$sizeofdims = sizeof($keys);
$main_key = $keys[0];


echo '<pre>';

foreach ($arr[$main_key] as $main_item)
{
    $key_handle = $main_item;
    echo "$key_handle\n";

    foreach ($keys as $i=>$k)
    {
        if ($k == $main_key)
        {
            continue;
        }

        foreach ($arr[$k] as $item)
        {
            $key_current = $key_handle;
            $key_handle .= $delimiter.$item;
            echo "$key_handle\n";

            if ($i+1 == $sizeofdims)
            {
                $key_handle = $key_current;
            }
            else
            {
                break;
            }

        }
    }
}

echo '</pre>';

当前输出：

LG
LG#Spain
LG#Spain#Paypal
LG#Spain#Paypal#Male
LG#Spain#Paypal#Female
Sony
Sony#Spain
Sony#Spain#Paypal
Sony#Spain#Paypal#Male
Sony#Spain#Paypal#Female

Answer 1

为了开个玩笑，我会给出一个最简单的解决方案：

foreach ($arr[$keys[0]] as $brand) {
    echo $brand . "\n";
    foreach ($arr[$keys[1]] as $country) {
        echo $brand . '#' . $country . "\n";
        foreach ($arr[$keys[2]] as $method) {
            echo $brand . '#' . $country . '#' . $method . "\n";
        }
    }
}

但下次自己尝试一下。

Answer 2

您的阵列有点难以使用。我建议将它重新组织成一个多维数组。

$array = array(
    'LG' => array(
        'Neverland' => array('Pirate gold', 'Magic coins', 'Fairy dust'), ), )
        'Fantasia' => array('Gems', 'Dragon Heartstring', 'Old underwear'), ),
    ),
    'Sony' => array(
        'Neverland' => array('Pirate gold', 'Magic coins', 'Fairy dust'), ), )
        'Fantasia' => array('Gems', 'Dragon Heartstring', 'Old underwear'), ),
    ),
);

现在你可以进行以下循环

foreach ($array as $brand => $countries) {
    echo $brand."<br />";
    foreach ($countries as $country => $paymentMethods) {
        echo $brand."#".$country."<br />";
        foreach ($paymentMethods as $paymentMethod) {
            echo $brand."#".$country."#".$paymentMethod."<br />";
        }
    }
}

php n array，n items，loop in loop

2 个答案: