PHP SimpleXML - 具有相同名称的多个子项

Question

我目前正在使用以下php代码生成xml文件。它采用表单输入并将它们放入xml文件中。

我想要有多个同名的孩子。例如：

<person>
  <address>
    <street>streetname</street>
    <streetnumber>streetnumber</streetnumber>
  </address>
  <address>
    <street>streetname</street>
    <streetnumber>streetnumber</streetnumber>
  </address>
</person>  

我生成xml的代码遵循这个结构;

//Add first address - working

$xml->person = "";
$xml->person->address = "";

$xml->person->address->addChild('streetname', $_POST['streetname1']);
$xml->person->address->addChild('streetnumber', $_POST['streetnumber1']);


//Attempt to add second address, doesn't work

$xml->person->address = "";

$xml->person->address->addChild('streetname', $_POST['streetname2']);
$xml->person->address->addChild('streetnumber', $_POST['streetnumber2']);

Answer 1

在构建XML文档时使用变量要容易得多，也不那么冗长。然后，您可以向<address>元素添加多个<person>元素，如下所示......

$person = $xml->addChild('person');

$address1 = $person->addChild('address');
$address1->addChild('streetname', $_POST['streetname1']);
$address1->addChild('streetnumber', $_POST['streetnumber1']);

$address2 = $person->addChild('address');
$address2->addChild('streetname', $_POST['streetname2']);
$address2->addChild('streetnumber', $_POST['streetnumber2']);