在XML中搜索值

Question

我的XML

<properties>
<property>
    <refno>001</refno>
    <status>active</status>
    <type>SP</type>
    <description>Text Text Text</description>
    <images>
      <image>Path_here</image>
      <image>Path_here</image>
      <image>Path_here</image>
    </images>
</property>
<property>
    <refno>002</refno>
    <status>active</status>
    <type>SP</type>
    <description>Text Text Text</description>
     <images>
      <image>Path_here</image>
      <image>Path_here</image>
      <image>Path_here</image>
    </images>
</property>
</properties>

我的PHP代码

if ($xml = simplexml_load_file($xml_file_here)) {
    foreach($xml->property as $i) {
        if ($i->refno == "1") {
            echo $i->description."<br />".
            echo $i->type;
        }
    }
}

我通常循环遍历XML以找到[refno]值。有没有办法在不需要循环的情况下搜索值？

Answer 1

您可以使用XPath表达式：

// find property element that contains a refno element with "001"
foreach ($xml->xpath('//property[contains(refno, "001")]') as $node) {
    echo (string)$node->description, "\n";
}