php 多维数组作为具有 ID 和数组值的单选按钮

Question

我是php菜鸟。我已经 Google 非常彻底地搜索了几天，但无法弄清楚。

我有一个多维数组，我必须将其转换为具有唯一 ID 和值的单选按钮，但我似乎做不到。

json数组：

Array
(
[0] => Array
    (
        [0] => Array
            (
                [available] => 1
                [courier] => 1
                [type] => 1
                [price] => 42.89
                [transitDays] => 3
            )

        [1] => Array
            (
                [available] => 1
                [courier] => 1
                [type] => 3
                [price] => 50.50
                [transitDays] => 4
            )

        [2] => Array
            (
                [available] => 0
            )

        ...

    )

[1] => Array
    (
        [0] => Array
            (
                [available] => 1
                [courier] => 2
                [type] => 1
                [price] => 111
                [transitDays] => 11
            )

        [1] => Array
            (
                [available] => 0
                [courier] => 2
                [type] => 4
                [price] => 22
                [transitDays] => 22
            )

        ...
    )
)

我需要将每个 ['available']==1 数组的一些值输出到单选按钮中，并且 select 能够在提交表单后检索数据。

<p class="row"><input type="radio" id="option-<?php echo $i ?> value="service-<?php echo $i ?>" name="type" "> <?php echo $service['type']; ?> will cost <?php echo $service['price']; ?> and take <?php echo $service['days']; ?></p>

我已经尝试展平数组并输出可用结果，但我无法分配 unique ID's。我试过了

  foreach ($providers as $provider) {
  $mergeProvider = array_merge($provider);
  foreach ($provider as $services){
    $service = array_merge($services);
      if( $service['available'] == 0 ) { unset($service); }
      $serviceCount = count($service);
      else {
          include('offer.php'); //where is input type="button"
      }

但这不允许我使用唯一 ID。

如果我这样做：

foreach ($providers as $provider) {
  $mergeProvider = array_merge($provider);
  foreach ($provider as $services){
    $service = array_merge($services);
        $serviceCount = count($services);
        for( $i = 1; $i < $serviceCount; $i++ ) {
        echo "<pre>";
        echo $serviceCount . "</pre>";

它喷出 $serviceCount 数量的不同选项，其中相同的选项具有不同的 ID。

我能做什么？

Answer 1

也许您可以根据 foreach 循环的键创建一个唯一键。

然后当您 post 表单时，名称字段将包含一个唯一值，如 service-00、service-01、service-10

例如：

$items = array(
    0 => array(
        0 => array(
            "available" => 1,
            "courier" => 1,
            "type" => 1,
            "price" => 42.89,
            "transitDays" => 3
        ),
        1 => array(
            "available" => 1,
            "courier" => 1,
            "type" => 3,
            "price" => 50.50,
            "transitDays" => 4
        ),
    ),
    1 => array(
        0 => array(
            "available" => 1,
            "courier" => 2,
            "type" => 1,
            "price" => 111,
            "transitDays" => 11
        ),
        1 => array(
            "available" => 0,
            "courier" => 2,
            "type" => 4,
            "price" => 22,
            "transitDays" => 22
        ),
    )
);

// 然后遍历 $items 并创建唯一键

foreach($items as $key => $item) {
    foreach($item as $subKey => $subItem) {
        if ($subItem["available"] === 1) {
            $uniqueKey = $key . $subKey;
            echo sprintf(
                '<p class="row"><input type="radio" id="option-%1$s" value="service-%1$s" name="type">%2$s will cost %3$s and take %4$s</p>',
                $uniqueKey,
                $subItem["type"],
                $subItem["price"],
                $subItem["transitDays"]
            );
        }
    }
}

Answer 2

作为对您评论中问题的回答：

你的意思是如何将 service-10 映射回数组？然后，您需要一种方法从字符串 'service-10' 中获取“10”。但是当数字大于 10 时，这可能会出错。例如 110（1 和 10）。所以我添加了另一个示例来说明如何做到这一点。我用管道更新了代码以分隔 $key 和 $subkey： $唯一键 = $键。 '|' . $subKey;

我还添加了一个 var_dump 以便您可以看到它匹配的映射数据。

// 比如这是你的index.php

<html>
<head></head>
<body>
<form id="theForm" name="theForm" method="POST" action="submit.php">
    <?php
    $items = array(
        0 => array(
            0 => array(
                "available" => 1,
                "courier" => 1,
                "type" => 1,
                "price" => 42.89,
                "transitDays" => 3
            ),
            1 => array(
                "available" => 1,
                "courier" => 1,
                "type" => 3,
                "price" => 50.50,
                "transitDays" => 4
            ),
        ),
        1 => array(
            0 => array(
                "available" => 1,
                "courier" => 2,
                "type" => 1,
                "price" => 111,
                "transitDays" => 11
            ),
            1 => array(
                "available" => 0,
                "courier" => 2,
                "type" => 4,
                "price" => 22,
                "transitDays" => 22
            ),
        )
    );

    foreach($items as $key => $item) {
        foreach($item as $subKey => $subItem) {
            if ($subItem["available"] === 1) {
                $uniqueKey = $key . '|' . $subKey;
                echo sprintf(
                    '<p class="row"><input type="radio" id="option-%1$s" value="service-%1$s" name="type">%2$s will cost %3$s and take %4$s</p>',
                    $uniqueKey,
                    $subItem["type"],
                    $subItem["price"],
                    $subItem["transitDays"]
                );
            }
        }
    }
    ?>
    <input type="submit" name="submit" value="submit">
</form>
</body>
</html>

例如这是你的 submit.php

<?php
$items = array(
    0 => array(
        0 => array(
            "available" => 1,
            "courier" => 1,
            "type" => 1,
            "price" => 42.89,
            "transitDays" => 3
        ),
        1 => array(
            "available" => 1,
            "courier" => 1,
            "type" => 3,
            "price" => 50.50,
            "transitDays" => 4
        ),
    ),
    1 => array(
        0 => array(
            "available" => 1,
            "courier" => 2,
            "type" => 1,
            "price" => 111,
            "transitDays" => 11
        ),
        1 => array(
            "available" => 0,
            "courier" => 2,
            "type" => 4,
            "price" => 22,
            "transitDays" => 22
        ),
    )
);

if ($_SERVER['REQUEST_METHOD'] === 'POST') {
    if (isset($_POST['type'])) {
        $type = $_POST['type'];
        $positionDash = strpos($type, '-');
        $positionPipe = strpos($type, '|');
        if (false !== $positionDash && false !== $positionPipe) {
            $tail = substr($type, $positionDash+1);
            $tree = explode('|', $tail);
            $mappedData = $items[$tree[0]][$tree[1]];
            var_dump($mappedData);
        }
    }
}

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