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simpleXML和同一个孩子

xml php

0

TheNone Nabster · 技术社区 · 15 年前

我有这样一个伪xml:

<SOA>
<cities>
    <area>Area1</area>
    <period>period1</period>
    <center>center1</center>
</cities>
<cities>
    <area>Area1</area>
    <period>period1</period>
    <center>center2</center>
</cities>
<cities>
    <area>Area2</area>
    <period>period1</period>
    <center>center3</center>
</cities>
</SOA>

我想在xml中循环,我的问题是:如何循环子对象?e、 g在区域中循环,区域名称是Area1(有两个区域1和中心1和中心2,我想做一个这样的查询:查找所有中心区域1) 提前谢谢

2 回复 | 直到 15 年前

1

4

VolkerK 15 年前

<水晶球> 也许你想迭代所有 cities 具有 area 包含文本内容的元素 Area1
XPath 为此,例如。

<?php
$soa = getDoc();
foreach( $soa->xpath('cities[area="Area1"]') as $ci ) {
  foreach( $ci->children() as $child ) {
    echo $child->getName(), ': ', (string)$child, "\n";  
  }
}

function getDoc() {
  return new SimpleXMLElement('<SOA>
    <cities>
      <area>Area1</area>
      <period>period1</period>
      <center>center1</center>
    </cities>
    <cities>
      <area>Area1</area>
      <period>period1</period>
      <center>center2</center>
    </cities>
    <cities>
      <area>Area2</area>
      <period>period1</period>
      <center>center3</center>
      </cities>
    </SOA>');
}

area: Area1
period: period1
center: center1
area: Area1
period: period1
center: center2

2

Tomasz StruczyÅski 15 年前

http://php.net/manual/en/simplexmlelement.xpath.php

$xml = new SimpleXMLElement($yourXML);

$result = $xml->xpath('/SOA/cities/SOA/cities[area="Area1"]');

while(list( , $node) = each($result)) {
    //$node is a city node with Area1 area
}