SimpleXMLElement::getNamespaces
(PHP 5 >= 5.1.2, PHP 7, PHP 8)
SimpleXMLElement::getNamespaces — Returns namespaces used in document
说明
public SimpleXMLElement::getNamespaces(bool
$recursive = false): arrayReturns namespaces used in document
参数
-
recursive -
If specified, returns all namespaces used in parent and child nodes. Otherwise, returns only namespaces used in root node.
返回值
The getNamespaces method returns an array of
namespace names with their associated URIs.
范例
示例 #1 Get document namespaces in use
<?php
$xml = <<<XML
<?xml version="1.0" standalone="yes"?>
<people xmlns:p="http://example.org/ns" xmlns:t="http://example.org/test">
<p:person id="1">John Doe</p:person>
<p:person id="2">Susie Q. Public</p:person>
</people>
XML;
$sxe = new SimpleXMLElement($xml);
$namespaces = $sxe->getNamespaces(true);
var_dump($namespaces);
?>
以上例程会输出：
array(1) {
["p"]=>
string(21) "http://example.org/ns"
}
参见
- SimpleXMLElement::getDocNamespaces() - Returns namespaces declared in document
- SimpleXMLElement::registerXPathNamespace() - Creates a prefix/ns context for the next XPath query
add a note
User Contributed Notes 3 notes
harry at nospam dot thestorm dot plus dot com ¶
10 years ago
If the namespace is nested in the xml, then you will have to loop over the nodes.
<?php
$xml = <<<XML
<?xml version="1.0" encoding="UTF-8"?>
<people xmlns:p="http://example.org/ns" xmlns:t="http://example.org/test">
<items>
<title>This is a test of namespaces and my patience</title>
<p:person id="1">John Doe</p:person>
<p:person id="2">Susie Q. Public</p:person>
<p:person id="1">Fish Man</p:person>
</items>
</people>
XML;
$sxe = new SimpleXMLElement($xml);
foreach ($sxe as $out_ns)
{
$ns = $out_ns->getNamespaces(true);
$child = $out_ns->children($ns['p']);
foreach ($child as $out)
{
echo $out . "<br />";
}
}
?>
harry at nospam dot thestorm dot plus dot com ¶
10 years ago
To read a namespace node you have to use the children method.
<?php
$xml = <<<XML
<?xml version="1.0" encoding="UTF-8"?>
<people xmlns:p="http://example.org/ns" xmlns:t="http://example.org/test">
<p:person id="1">John Doe</p:person>
<p:person id="2">Susie Q. Public</p:person>
</people>
XML;
$sxe = new SimpleXMLElement($xml);
$ns = $sxe->getNamespaces(true);
$child = $sxe->children($ns['p']);
foreach ($child->person as $out_ns)
{
echo $out_ns;
}
?>
thiago at osfeio dot com ¶
8 years ago
this article has more info : http://www.sitepoint.com/parsing-xml-with-simplexml/
备份地址：http://www.lvesu.com/blog/php/simplexmlelement.getnamespaces.php