将名称空间属性添加到php中的xml节点 - Add namespace attribute to xml node in php

Add namespace attribute to xml node in php

下面是我试图在XML-中创建的节点

<?xml version="1.0" standalone="no" ?>
<manifest identifier="com.scorm.golfsamples.contentpackaging.multioscosinglefile.20043rd"
          version="1"
          xmlns="http://www.imsglobal.org/xsd/imscp_v1p1"
          xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
          xmlns:adlcp="http://www.adlnet.org/xsd/adlcp_v1p3"
          xmlns:adlseq="http://www.adlnet.org/xsd/adlseq_v1p3"
          xmlns:adlnav="http://www.adlnet.org/xsd/adlnav_v1p3"
          xmlns:imsss="http://www.imsglobal.org/xsd/imsss"
          xsi:schemaLocation="http://www.imsglobal.org/xsd/imscp_v1p1 imscp_v1p1.xsd
                              http://www.adlnet.org/xsd/adlcp_v1p3 adlcp_v1p3.xsd
                              http://www.adlnet.org/xsd/adlseq_v1p3 adlseq_v1p3.xsd
                              http://www.adlnet.org/xsd/adlnav_v1p3 adlnav_v1p3.xsd
                              http://www.imsglobal.org/xsd/imsss imsss_v1p0.xsd">

代码对identifier和version属性运行良好，但无法使用类似xmlns="http://www.imsglobal.org/xsd/imscp_v1p1" 的命名空间生成它

从这里尝试了这个代码，但无法实现：（

$doc = new DOMDocument( '1.0' );
$doc->loadXML( $source );
// (1) We just create a "namespace'd" attribute without appending it to any element.
$attr_ns = $doc->createAttributeNS( '{namespace_uri_here}', 'example:attr' );
print $doc->saveXML() . "'n";

编码板链接-http://codepad.org/uLJc4hpP

完整代码-

   //creating an XML document
    $dom = new DOMDocument('1.0');
    $dom->xmlStandalone = false;
    //create element manifest
    $manfiestNode = $dom->createElement('manifest',"");
    //create attribute identifier
    $manfiestNodeAttr = $dom->createAttribute('identifier');
    //value for the manifest node identifier value
    $date = new DateTime();
    $manfiestNodeAttr->value = 'course_'.date_format($date,'U');
    //append attribute to the manifest element
    $manfiestNode->appendChild($manfiestNodeAttr);
    //create attribute with an associated namespace
    $nodeAttr = $manfiestNode->createAttributeNS('{namespace_uri_here}', 'example:attr');
    //append namespace to the manifest element
    $nodeAttr->appendChild($manfiestNode);
    //append manifest element to the document
    $dom->appendChild($manfiestNode);
    var_dump($dom->saveXML());

让我知道我在概念上做错了什么，以及我如何才能让它发挥作用。

我试着在第20行[代码板链接]中将$manfiestNode更改为$dom，但仍然没有成功：（.

错误-

致命错误：调用未定义的方法DOMElement:：createAttributeNS（）在线20

像下面的一样尝试createAttribute

$dom = new DOMDocument('1.0','UTF-8'); 
// root manifest
$root = $dom->appendChild($dom->createElement('manifest')); 
// identifier   
$date = new DateTime();
$manfiestNodeAttr_value = 'course_'.date_format($date,'U');
$root->appendChild($dom->createAttribute('identifier'))->appendChild($dom->createTextNode($manfiestNodeAttr_value)); 
// version
$version = 1;
$root->appendChild($dom->createAttribute('version'))->appendChild($dom->createTextNode($version)); 
// xmlns:xsi
$root->appendChild($dom->createAttribute('xmlns:xsi'))->appendChild($dom->createTextNode("http://www.w3.org/2001/XMLSchema-instance"));
print_r($dom->saveXML());

演示代码板：http://codepad.org/zgug0Gl3