在PHP中发送重复的XML节并使用数组构造

我正在与PHP的SOAP客户端交互，以向远程SOAP服务器发送和接收请求，并且我必须随请求发送的一个XML文档具有重复的部分。我的意思是XML是这样的：

<pSalesInvoiceInput>
    <SalesInvoice>
        <invoice_date>[unknown type: string]</invoice_date>
        <due_date>[unknown type: string]</due_date>
        <notes>[unknown type: string?]</notes>
        <line_data>
            <description></description>
            <net_amount>[unknown type: string]</net_amount>
            <vat_amount>[unknown type: string]</vat_amount>
            <nominal_code>[unknown type: string]</nominal_code>
        </line_data>
        <line_data>
            <description></description>
            <net_amount>[unknown type: string]</net_amount>
            <vat_amount>[unknown type: string]</vat_amount>
            <nominal_code>[unknown type: string]</nominal_code>
        </line_data>
    </SalesInvoice>
</pSalesInvoiceInput>

---

有人知道怎么解决这个问题吗？如果可能的话，我希望继续使用数组构建我的请求XML，因为它是在代码库的其他地方以这种方式完成的。

修复了这个问题，事实证明PHP SOAP客户端已经预料到了这一点，并允许我们执行以下操作：

'line_data' => [
    ['description' => 'Test #1',
    'net_amount' => '50.00',
    'vat_amount' => '10.00',
    'nominal_code' => '6110',
    'glue_house_id' => $this->Houses->id],
    ['description' => 'Test #1',
    'net_amount' => '50.00',
    'vat_amount' => '10.00',
    'nominal_code' => '6110',
    'glue_house_id' => $this->Houses->id]
]

所以只要提供一个多维数组，SOAP客户机就会自动正确格式化它

'line_data' => [
    ['description' => 'Test #1',
    'net_amount' => '50.00',
    'vat_amount' => '10.00',
    'nominal_code' => '6110',
    'glue_house_id' => $this->Houses->id],
    ['description' => 'Test #1',
    'net_amount' => '50.00',
    'vat_amount' => '10.00',
    'nominal_code' => '6110',
    'glue_house_id' => $this->Houses->id]
]