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): array

Returns 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

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User Contributed Notes 3 notes

down

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 />";

    }

}

?>

down

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;
}

?>

down

-1

thiago at osfeio dot com ¶

8 years ago


this article has more info : http://www.sitepoint.com/parsing-xml-with-simplexml/

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官方地址：https://www.php.net/manual/en/simplexmlelement.getnamespaces.php

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SimpleXMLElement::getNamespaces

说明

参数

返回值

范例

参见

User Contributed Notes 3 notes