用PHP读取XML文件，XML文件没有组织

Question

大家好，我有一个这样的 XML 文件：

<?xml version="1.0"?>

<catalog>

   <car>

      <title>This is car</title>

      <price>44.95</price>

      <model>2018</model>

      <description>An in-depth look at creating applications with XML.</description>

   </car>

   <bike>

      <title>this is bike</title>

      <price>33.58</price>

      <description>Just the dummy description</description>

   </bike>

   <wheels>

      <title>this is wheel</title>

      <price>33.58</price>

      <description>Just the dummy description</description>

   </wheels>

   <bike>

      <title>this is bike</title>

      <price>33.58</price>

      <description>Just the dummy description</description>

   </bike>

</catalog>

我想遍历节点并相应地处理节点。如果是汽车，我需要将汽车详细信息传递给某个函数，如果是自行车，则需要将自行车详细信息传递给另一个函数。

关键是根据节点类型（汽车或自行车或其他）处理节点。

PHP

$z = new XMLReader;

$z->open('data.xml');

$doc = new DOMDocument;

// move to the first <product /> node

while ($z->read() && $z->name !== 'product');

// now that we're at the right depth, hop to the next <product/> until the end of the tree

while ($z->name === 'product')

{

    // either one should work

    //$node = new SimpleXMLElement($z->readOuterXML());

    $node = simplexml_import_dom($doc->importNode($z->expand(), true));

    // now you can use $node without going insane about parsing

    var_dump($node->element_1);

    // go to next <product />

    $z->next('product');

}

如果节点是产品，上面的 PHP 代码工作正常。我需要使用不同的节点。

Answer 1

你可以只使用 SimpleXML 来做到这一点：$xml = simplexml_load_file('data.xml');foreach ($xml->children() as $product) {&nbsp; &nbsp; if ($product->getName() == 'car') {&nbsp; &nbsp; &nbsp; &nbsp; carFunc($product->title, $product->price, $product->model, $product->description);&nbsp; &nbsp; }&nbsp; &nbsp; if ($product->getName() == 'bike') {&nbsp; &nbsp; &nbsp; &nbsp; bikeFunc($product->title, $product->price, $product->description);&nbsp; &nbsp; }&nbsp; &nbsp; if ($product->getName() == 'wheels') {&nbsp; &nbsp; &nbsp; &nbsp; wheelFunc($product->title, $product->price, $product->description);&nbsp; &nbsp; }}function carFunc($title, $price, $model, $description) {&nbsp; &nbsp; echo "Car: $title: It's a $model selling for $price. In detail: $description\n";}function bikeFunc($title, $price, $description) {&nbsp; &nbsp; echo "Bike: $title: It sells for $price. In detail: $description\n";}function wheelFunc($title, $price, $description) {&nbsp; &nbsp; echo "Wheel: $title: It sells for $price. In detail: $description\n";}输出（对于您的示例 XML）Car: This is car: It's a 2018 selling for 44.95. In detail: An in-depth look at creating applications with XML.&nbsp;Bike: this is bike: It sells for 33.58. In detail: Just the dummy description&nbsp;Wheel: this is wheel: It sells for 33.58. In detail: Just the dummy description&nbsp;Bike: this is bike: It sells for 33.58. In detail: Just the dummy description