我试图用以前的答案找出来,但我不能正确地做到这一点,我跟着斯特凡的回答Remove a child with a specific attribute, in SimpleXML for PHP
我的代码是
的xml:
<?xml version="1.0" encoding="utf-8"?>
<res>
<items>
<item>
<id>1</id>
<a>asdasda</a>
</item>
<item>
<id>1</id>
<a>bababba</a>
</item>
<id>2</id>
<a>sasdasda</a>
</item>
<item>
<id>3</id>
<a>sasdasda</a>
</item>
<item>
<id>4</id>
<a>sasdasda</a>
</item>
<item>
<id>5</id>
<a>sasdasda</a>
</item>
<item>
<id>6</id>
<a>sasdasda</a>
</item>
</items>
</res>
和php是
<?php
$id="1";
$xml = simplexml_load_file("filtracjaxml.xml") ;
foreach($xml->items->item->id as $id)
{
if($id == '1') {
$xml=dom_import_simplexml($id);
$xml->parentNode->removeChild($xml);
}
}
echo $xml->asXml();
?>
当我尝试运行它时,我有
Fatal error: Call to undefined method DOMElement::asXml() in filtruj.php on line 14
编辑:
我想要的是删除整个'item'而不仅仅是'id' - 所有id = 1的项目
所以我改变了代码:
foreach ( $xml->items->item as $id )
{
if ( $id->id == '1' ) {
$tmp = dom_import_simplexml($id);
$tmp->parentNode->removeChild($tmp);
}
}
echo $xml->asXml();
并且它只删除第一个项目。你能告诉我为什么吗?上面写的代码有什么问题?
答案 0 :(得分:1)
<?php
$id="1";
$xml = simplexml_load_file("filtracjaxml.xml") ;
foreach ( $xml->items->item->id as $id )
{
if ( $id == '1' ) {
$tmp = dom_import_simplexml($id);
$tmp->parentNode->removeChild($tmp);
}
}
echo $xml->asXml();
?>