多维数组到多维 SimpleXMLElement（XML 对象）[重复]

Question

我在创建多维 SimpleXMLElement 时遇到了一些问题，它适用于简单数组，但是当存在多维数组时，SimpleXMLElement 不会写入多维 SimpleXMLEelement。像这样：

createXML 函数：

public function createXML($data, $root = null) {
    $xml = new \SimpleXMLElement($root ? '<' . $root . '/>' : '<marathon/>');
    array_walk_recursive($data, function($value, $key)use($xml){
        $xml->addChild($key, $value);
    });

    $dom = dom_import_simplexml($xml)->ownerDocument;
    $dom->encoding = "UTF-8";
    $dom->formatOutput = true;
    print $dom->saveXML();
}

打印如下：

<marathon>
  <media_id>FACE</media_id>
  <agreement_id>****</agreement_id>
  <client_reference>123456</client_reference>
  <client_contact>Asim</client_contact>
  <plan_number>407</plan_number>
  <plan_name>TEST</plan_name>
  <cuid>123456</cuid>
  <status>P</status>
  <colour>0</colour>
  <insertion_date>2018-09-19</insertion_date>
  <end_date>2018-09-20</end_date>
  <client_reference>1234</client_reference>
  <price_code>0</price_code>
  <number_of_units>250000</number_of_units>
  <gross>1000</gross>
  <comment>THIS IS A TEST DO NOT FAKTURER</comment>
</marathon>

当我想要的是：

<marathon>
  <media_id>FACE</media_id>
  <agreement_id>REDP</agreement_id>
  <client_reference>123456</client_reference>
  <client_contact>Asim Tariq</client_contact>
  <plan_number>407</plan_number>
  <plan_name>TEST</plan_name>
  <cuid>123456</cuid>
  <status>P</status>
  <colour>0</colour>
     <insertion>
        <insertion_date>2018-09-19</insertion_date>
        <end_date>2018-09-20</end_date>
        <client_reference>1234</client_reference>
              <price_row>
                  <price_code>0</price_code>
                  <number_of_units>250000</number_of_units>
                  <gross>1000</gross>
                  <comment>THIS IS A TEST DO NOT FAKTURER</comment>
             </price_row>
     </insertion>
</marathon>

如何使用createXML 中的代码管理此问题？ XML 不是多维的？

这是我发送的数组 $data:

[
            "media_id" => 'FACE',
            "agreement_id" => 'REDP',
            "client_reference" => 123456,
            "client_contact" => "Asim Tariq",
            "plan_number" => 407,
            "plan_name" => "TEST",
            "cuid" => 123456,
            "status" => 'P',
            "colour" => 0,
            "insertion" => [
                "insertion_date" => '2018-09-19',
                "end_date" => '2018-09-20',
                "client_reference" => 1234,
                "price_row" => [
                    "price_code" => 000,
                    "number_of_units" => 250000,
                    "gross" => 1000,
                    "discount" => [

                    ], 
                 "comment" => "THIS IS A TEST DO NOT FAKTURER",
                ],
            ],
        ]

Answer 1

根据the documentation for array_walk_recursive，“任何包含数组的键都不会传递给函数”。

编写一个递归函数，如果它是一个数组，则将值添加到子元素中。例如：

private function addXMLData(\SimpleXMLElement $xml, array $data)
{
    array_walk($data, function($value, $key) use($xml){
        if (is_array($value)) {
            $child = $xml->addChild($key);
            self::addXMLData($child, $value);
        } else {
            $xml->addChild($key, $value);
        }
    });
}

public function createXML($data, $root = null) {
    $xml = new \SimpleXMLElement($root ? '<' . $root . '/>' : '<marathon/>');

    self::addXMLData($xml, $data);

    $dom = dom_import_simplexml($xml)->ownerDocument;
    $dom->encoding = "UTF-8";
    $dom->formatOutput = true;
    print $dom->saveXML();
}