PHP使用dom导入带有前缀的简单XML元素
我试图让它接受以下XML:PHP使用dom导入带有前缀的简单XML元素,php,xml,Php,Xml,我试图让它接受以下XML: $loopc = 0; foreach( $xmls->url as $url ) { $num = $xmls->count(); if ( $loopc <= $num ) { insertNode($xmls, 'url['.$loopc.']', 'image:image', NULL); insertNode($xmls, 'url['.$loopc.']->image', 'image
$loopc = 0;
foreach( $xmls->url as $url ) {
$num = $xmls->count();
if ( $loopc <= $num ) {
insertNode($xmls, 'url['.$loopc.']', 'image:image', NULL);
insertNode($xmls, 'url['.$loopc.']->image', 'image:loc', 'urldata');
$loopc = $loopc+1;
} else {
break;
}
}
echo $xmls->asXML();
function insertNode(SimpleXMLElement $xml, $path, $qname, $val) {
eval('$cur = $xml->'.$path.';');
$sd = dom_import_simplexml($cur);
$newNode = $sd->ownerDocument->createElement($qname, $val);
$newNode = $sd->appendChild($newNode);
return simplexml_import_dom($newNode);
}
让它看起来像这样:
<?xml version="1.0" encoding="UTF-8"?>
<urlset xmlns="http://www.sitemaps.org/schemas/sitemap/0.9" xmlns:image="http://www.sitemaps.org/schemas/sitemap-image/1.1" xmlns:video="http://www.sitemaps.org/schemas/sitemap-video/1.1">
<url>
<loc>http://truefoodlooks.comcompare.php?id=49</loc>
</url>
</urlset>
但当我尝试执行第二个insertNode时,我会出现以下错误:
警告:dom_import_simplexml:第47行的/volume1/web/truefoodlooks/test/index.php中要导入的节点类型无效
如何解决此问题?您不能将复杂的对象语法作为字符串传递。我对您的代码进行了一些修改以解决您的问题,但这不是一个很好的方法:
<?xml version="1.0" encoding="UTF-8"?>
<urlset xmlns="http://www.sitemaps.org/schemas/sitemap/0.9" xmlns:image="http://www.sitemaps.org/schemas/sitemap-image/1.1" xmlns:video="http://www.sitemaps.org/schemas/sitemap-video/1.1">
<url>
<loc>http://truefoodlooks.comcompare.php?id=49</loc>
<image:image>
<image:loc>urldata</image:loc>
</image:image>
</url>
</urlset>
为什么说这不是一个很好的方法呢?因为如果希望SimpleXml返回,就不需要将SimpleXml转换为dom。只需使用$simplexmlement->addChild'node','value'。另一件事是,如果您想以字符串形式传递对象语法,比如“obj->prop[0]”,您必须为此构建一个解析器。
$loopc = 0;
foreach( $xmls->url as $url ) {
$num = $xmls->count();
if ( $loopc <= $num ) {
insertNode($xmls, 'url',$loopc,'image:image', NULL);
insertNode($xmls->url[$loopc], 'image:image',NULL, 'image:loc', 'urldata');
$loopc = $loopc+1;
} else {
break;
}
}
echo $xmls->asXML();
function insertNode(SimpleXMLElement $xml, $pathName, $pathIndex, $qname, $val) {
if(!is_null($pathIndex))
{
$cur = $xml->{$pathName}[$pathIndex];
}
else{
$cur = $xml->{$pathName};
}
$sd = dom_import_simplexml($cur);
$newNode = $sd->ownerDocument->createElement($qname, $val);
$newNode = $sd->appendChild($newNode);
return simplexml_import_dom($newNode);
}