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DOMElement::removeAttribute> <DOMElement::hasAttribute
Last updated: Fri, 13 Nov 2009

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DOMElement::hasAttributeNS

(PHP 5)

DOMElement::hasAttributeNS 属性が存在するかどうかを調べる

説明

bool DOMElement::hasAttributeNS ( string $namespaceURI , string $localName )

要素のメンバとして localName という名前の属性が 名前空間 namespaceURI に存在するかどうかを示します。

パラメータ

namespaceURI

名前空間 URI。

localName

ローカル名。

返り値

成功した場合に TRUE を、失敗した場合に FALSE を返します。

参考



add a note add a note User Contributed Notes
DOMElement::hasAttributeNS
chad dot retz at gmail dot com
11-May-2008 04:38
This does not work as expected (at least on 5.2.5) with attributes in the default namespace. For instance:

<?php
$dom
= new DOMDocument();
$dom->loadXML('<?xml version="1.0"?><element xmlns="testns" attr="testval" />');
var_dump($dom->documentElement->hasAttributeNS('testns', 'attr'));
?>

returns bool(false) whereas:

<?php
$dom
= new DOMDocument();
$dom->loadXML('<?xml version="1.0"?><element xmlns:ns1="testns" ns1:attr="testval" />');
var_dump($dom->documentElement->hasAttributeNS('testns', 'attr'));
?>

returns bool(true). NULL does work properly in the namespaceURI parameter, so changing my initial example to:

<?php
$dom
= new DOMDocument();
$dom->loadXML('<?xml version="1.0"?><element xmlns="testns" attr="testval" />');
var_dump($dom->documentElement->hasAttributeNS(NULL, 'attr'));
?>

returns bool(true) as expected. Or even better for when you don't know whether the NS will be default:

<?php
$dom
= new DOMDocument();
$dom->loadXML('<?xml version="1.0"?><element xmlns="testns" attr="testval" />');
var_dump($dom->documentElement->hasAttributeNS(
   
is_null($dom->documentElement->lookupPrefix('testns')) ? NULL : 'testns', 'attr'));
?>

DOMElement::removeAttribute> <DOMElement::hasAttribute
Last updated: Fri, 13 Nov 2009
 
 
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