可能重复:
SimpleXMLElement 对象
嗨,我想对 XML 文档进行排序 - 我这样做是这样的:
public function xsort(&$nodes, $child_name, $order=SORT_ASC)
{
$sort_proxy = array();
foreach($nodes as $k => $node) {
$sort_proxy[$k] = (string) $node->$child_name;
}
array_multisort($sort_proxy, $order, $nodes);
}
我得到了$nodes
变量中的排序数组。在代码中它以这种方式使用:
$this->xsort($nodes, 'kategoria_6', SORT_DESC);
当我做 print_r($nodes); 我得到排序视图
SimpleXMLElement Object (
[kategoria_6] => kat4
[opis_6] => opis4
[img] => slides/slide3.jpg
)
SimpleXMLElement Object (
[kategoria_6] => kat3
[opis_6] => opis3
[img] => slides/slide2.jpg
)
SimpleXMLElement Object (
[kategoria_6] => kat2
[opis_6] => opis2
[img] => slides/slide1.jpg
)
SimpleXMLElement Object (
[kategoria_6] => kat1
[opis_6] => opis1
[img] => slides/slide0.jpg
)
SimpleXMLElement Object (
[kategoria_6] => kat1
[opis_6] => opis1
[img] => slides/slide4.jpg
)
但是当我想将它保存到文件中时,它是未排序的。文件保存代码:
$dom = new DOMDocument('1.0', 'utf-8');
foreach ($nodes as $element) {
$dom = dom_import_simplexml($element)->ownerDocument;
}
$dom->save("c:\\aaa.xml");
有谁知道为什么它保存未排序?