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这让我感到非常紧张。在我的XML文件中,我嵌套了名字相同的子项<entry>
,我试图仅获得最高级别。如果我打电话getElementsByTagName()
它抓住了所有这些,所以我解析为直接的孩子,似乎没有任何工作正常。PHP XML子解析问题
<locations>
<devices>
<entry>
<a/>
<b/>
<c>
<entry>
..
</entry>
</c>
</entry>
<entry>
<a/>
<b/>
<c>
<entry>
..
</entry>
</c>
</entry>
</devices>
</locations>
<?
$path = "Export.txt" ;
$xml = file_get_contents($path);
$dom = new DOMDocument('1.0', 'utf-8');
$dom->preserveWhiteSpace = false;
$dom->formatOutput = true;
// use it as a source
$dom->loadXML($xml) ;
// grab all "devices" should ONLY be 1 device
$devices = $dom->getElementsByTagName('devices');
$entries = array() ;
// parse through each FIRST child...which should be the first level <entry>
// however, the below is empty.
for ($i = 0; $i < $devices->childNodes->length; ++$i) {
echo $count++ ;
$entries[] = $devices->childNodes->item($i);
}
// but I get the following error on this foreach:
// Warning: Invalid argument supplied for foreach() in process.php
foreach ($devices->childNodes as $node) {
echo "This: " . $count++ ;
}
// this prints "1": which is correct.
echo sizeof($devices) ;
//关于从childNode
foreach ($devices as $device) {
foreach($device->childNodes as $child) { // this should be each parent <entry>
$thisC = $child->getElementsByTagName('c') ; // this should be only <c> tags BUT THIS NEVER SEEMS TO WORK
foreach ($thisC->childNodes as $subEntry) {
echo $subEntry->nodeValue ;
}
}
}
我是fina lly得到它的工作,但它是丑陋的。去上面使用你的建议。但是,是否可以从childNode中提取getElementsByTagName?我在原始文章的底部添加了更多示例代码。 – rolinger
您可以在任何DomElement对象上使用getElementsByTagName。但是,如果您有其他问题,则应在进行一些故障排除和测试后将其作为一个整体发布。 – miken32