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');$doc = new DOMDocument;// move to the first <product /> nodewhile ($z->read() && $z->name !== 'product');// now that we're at the right depth, hop to the next <product/> until the end of the treewhile ($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) {

    if ($product->getName() == 'car') {

        carFunc($product->title, $product->price, $product->model, $product->description);

    }

    if ($product->getName() == 'bike') {

        bikeFunc($product->title, $product->price, $product->description);

    }

    if ($product->getName() == 'wheels') {

        wheelFunc($product->title, $product->price, $product->description);

    }

}

function carFunc($title, $price, $model, $description) {

    echo "Car: $title: It's a $model selling for $price. In detail: $description\n";

}

function bikeFunc($title, $price, $description) {

    echo "Bike: $title: It sells for $price. In detail: $description\n";

}

function wheelFunc($title, $price, $description) {

    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. 

Bike: this is bike: It sells for 33.58. In detail: Just the dummy description 

Wheel: this is wheel: It sells for 33.58. In detail: Just the dummy description 

Bike: this is bike: It sells for 33.58. In detail: Just the dummy description