php - 如何解析顶级XML元素php

Question

我有一个如下所示的 XML 响应：

<?xml version="1.0" encoding="UTF-8"?>
<new_subscription_notification>
  <account>
    <account_code>1</account_code>
    <username nil="true">verena</username>
    <email>[e-mail]</email>
    <first_name>Verena</first_name>
    <last_name>Example</last_name>
    <company_name nil="true">Company, Inc.</company_name>
  </account>
  <subscription>
    <plan>
      <plan_code>bronze</plan_code>
      <name>Bronze Plan</name>
    </plan>
    <uuid>8047cb4fd5f874b14d713d785436ebd3</uuid>
    <state>active</state>
    <quantity type="integer">2</quantity>
    <total_amount_in_cents type="integer">17000</total_amount_in_cents>
    <subscription_add_ons type="array">
      <subscription_add_on>
        <add_on_code>premium_support</add_on_code>
        <name>Premium Support</name>
        <quantity type="integer">1</quantity>
        <unit_amount_in_cents type="integer">15000</unit_amount_in_cents>
        <external_sku>pre-123<external_sku>
        <add_on_type>fixed</add_on_type>
        <usage_percentage nil="true"></usage_percentage>
        <measured_unit_id nil="true"></measured_unit_id>
      </subscription_add_on>
      <subscription_add_on>
        <add_on_code>email_blasts</add_on_code>
        <name>Email Blasts</name>
        <quantity type="integer">1</quantity>
        <external_sku>email-123<external_sku>
        <unit_amount_in_cents type="integer">50</unit_amount_in_cents>
        <add_on_type>usage</add_on_type>
        <usage_percentage nil="true"></usage_percentage>
        <measured_unit_id type="integer">394681687402874853</measured_unit_id>
      </subscription_add_on>
      <subscription_add_on>
        <add_on_code>donations</add_on_code>
        <name>Donations</name>
        <quantity type="integer">1</quantity>
        <unit_amount_in_cents nil="true"></unit_amount_in_cents>
        <add_on_type>usage</add_on_type>
        <usage_percentage>0.6</usage_percentage>
        <measured_unit_id type="integer">394681920153192422</measured_unit_id>
      </subscription_add_on>
    </subscription_add_ons>
    <activated_at type="datetime">2009-11-22T13:10:38Z</activated_at>
    <canceled_at type="datetime"></canceled_at>
    <expires_at type="datetime"></expires_at>
    <current_period_started_at type="datetime">2009-11-22T13:10:38Z</current_period_started_at>
    <current_period_ends_at type="datetime">2009-11-29T13:10:38Z</current_period_ends_at>
    <trial_started_at type="datetime">2009-11-22T13:10:38Z</trial_started_at>
    <trial_ends_at type="datetime">2009-11-29T13:10:38Z</trial_ends_at>
    <collection_method>automatic</collection_method>
  </subscription>
</new_subscription_notification>

我将其转换为可用的数组：

    $xml = simplexml_load_string($request);
    $json = json_encode($xml);
    $array = json_decode($json,TRUE);

它工作得很好，给了我这个数组：

{"account":{"account_code":"shopify-3207741833301","username":{"@attributes":{"nil":"true"}},"email":"[e-mail]","first_name":"Chrysanthemum","last_name":"Hayes","company_name":{"@attributes":{"nil":"true"}},"phone":{"@attributes":{"nil":"true"}}},"invoice":{"uuid":"53f16d5e15f0e9043a2c7c480d89af86","state":"paid","origin":"purchase","invoice_number_prefix":[],"invoice_number":"2567","address":{"address1":"3646 Deedham Drive","address2":[],"city":"San Jose","state":"CA","zip":"95148","country":"US","phone":[]},"vat_number":{"@attributes":{"nil":"true"}},"currency":"USD","balance_in_cents":"0","total_in_cents":"3389","tax_in_cents":"0","subtotal_in_cents":"3389","subtotal_before_discount_in_cents":"3389","discount_in_cents":"0","subscription_ids":{"@attributes":{"type":"array"}},"customer_notes":[],"created_at":"2020-06-05T03:59:23Z","updated_at":"2020-06-05T03:59:23Z","closed_at":"2020-06-05T03:59:23Z","shipping_address":{"name":"Angela Swartz","address1":"1324 Rainbow Dr","address2":[],"city":"San Mateo","state":"CA","zip":"94402","country":"US","phone":[]},"po_number":{"@attributes":{"nil":"true"}},"terms_and_conditions":[],"due_on":"2020-06-05T03:59:23Z","net_terms":"0","collection_method":"automatic"}}

问题是这个 webhook 发送了几种不同类型的响应（它将所有响应发送到所有 webhook 地址，我不能只订阅我想要的一个），我只想处理<new_subscription_notification>顶级 XML 元素的响应。当我将所有转换为数组时，该元素不在数组中，因为它本质上只是元素，但在这种情况下，它具有有用的数据。

有没有一种方法可以访问该顶级 XML 标记，以便我的代码仅在收到<new_subscription_notification>响应时运行？

标签： phpxmllaravelwebhooks