XML得到节点名通过XPATH

Question

我使用XPath有这个XML

<Parent> 
<Children> 
    <child1>1</child1> 
    <secondchild>2</secondchild> 
    <child3>3</child3> 
    <fourth>4</fourth> 
</Children> 
</Parent> 

，我想每个Children的节点名直到结束：

• child1
• secondhild
• child3
• fourth

像Parent/Children/*[@name] ..没有，只有主子节点名称

Answer 1

也许这针对任何属性：

<?php 
$string = '<Parent> 
<Children> 
    <child1>1</child1> 
    <secondchild>2</secondchild> 
    <child3>3</child3> 
    <fourth>4</fourth> 
</Children> 
</Parent>'; 

$xml = new SimpleXMLElement($string); 

$children = $xml->xpath('/Parent/Children/*'); 

foreach ($children as $child){ 
    echo $child->getName() . "\n"; 
} 

或

<?php 
$string = '<Parent> 
<Children> 
    <child1>1</child1> 
    <secondchild>2</secondchild> 
    <child3>3</child3> 
    <fourth>4</fourth> 
</Children> 
</Parent>'; 

$xml = new SimpleXMLElement($string); 

$children = $xml->xpath('/Parent/Children/*'); 
$result = array(); 

foreach ($children as $child){ 
    $result[] = $child->getName(); 
} 

print_r($result); 

Answer 2

试试这个XPATH：

Parent/Children/*/name() 

这将调用结果节点上的name（）函数。