(PHP 5 >= 5.1.2, PHP 7)
SimpleXMLElement::getDocNamespaces — Returns namespaces declared in document
$recursive = false
[, bool $from_root = true
]] )Returns namespaces declared in document
recursiveIf specified, returns all namespaces declared in parent and child nodes. Otherwise, returns only namespaces declared in root node.
from_rootAllows you to recursively check namespaces under a child node instead of from the root of the XML doc.
The getDocNamespaces method returns an array of namespace names with their associated URIs.
Example #1 Get document namespaces
<?php
$xml = <<<XML
<?xml version="1.0" standalone="yes"?>
<people xmlns:p="http://example.org/ns">
<p:person id="1">John Doe</p:person>
<p:person id="2">Susie Q. Public</p:person>
</people>
XML;
$sxe = new SimpleXMLElement($xml);
$namespaces = $sxe->getDocNamespaces();
var_dump($namespaces);
?>
以上例程会输出：
array(1) {
["p"]=>
string(21) "http://example.org/ns"
}
Example #2 Working with multiple namespaces
<?php
$xml = <<<XML
<?xml version="1.0" standalone="yes"?>
<people xmlns:p="http://example.org/ns" xmlns:t="http://example.org/test">
<p:person t:id="1">John Doe</p:person>
<p:person t:id="2" a:addr="123 Street" xmlns:a="http://example.org/addr">
Susie Q. Public
</p:person>
</people>
XML;
$sxe = new SimpleXMLElement($xml);
$namespaces = $sxe->getDocNamespaces(TRUE);
var_dump($namespaces);
?>
以上例程会输出：
array(3) {
["p"]=>
string(21) "http://example.org/ns"
["t"]=>
string(23) "http://example.org/test"
["a"]=>
string(23) "http://example.org/addr"
}
| 版本 | 说明 |
|---|---|
| 5.4.0 |
Added from_root parameter.
|