PHP-合并两个不重复的xml属性

Question

我有两个像这样的xml1：

 <Title>Sea Change</Title>
    <thirdParty_ID></thirdParty_ID>
    <Animation_Indicator>N</Animation_Indicator>
    <Blackout_Indicator>N</Blackout_Indicator>
<SD_Purchase_Zoe></SD_Purchase_Zoe>
    <SD_Purchase_Window_Start_Zoe></SD_Purchase_Window_Start_Zoe>
    <SD_Purchase_Window_End_Zoe></SD_Purchase_Window_End_Zoe>
    <SD_Licensing_Window_start_Zoe></SD_Licensing_Window_start_Zoe>
<HD_Licensing_Window_start_Zoe>2012-04-01</HD_Licensing_Window_start_Zoe>
    <HD_Licensing_Window_end_Zoe>2013-04-01</HD_Licensing_Window_end_Zoe>
    <HD_Purchase_Window_Start_Zoe>2012-04-01</HD_Purchase_Window_Start_Zoe>

xml2：

<Asset_Record>
    <Title>Sea Change</Title>
    <thirdParty_ID></thirdParty_ID>
    <Animation_Indicator>N</Animation_Indicator>
    <Blackout_Indicator>N</Blackout_Indicator>
<SD_Purchase_Zoe>Y</SD_Purchase_Zoe>
    <SD_Purchase_Window_Start_Zoe>2012-04-01</SD_Purchase_Window_Start_Zoe>
    <SD_Purchase_Window_End_Zoe>2013-04-01</SD_Purchase_Window_End_Zoe>
    <SD_Licensing_Window_start_Zoe>2012-04-01</SD_Licensing_Window_start_Zoe>
<HD_Licensing_Window_start_Zoe></HD_Licensing_Window_start_Zoe>
    <HD_Licensing_Window_end_Zoe></HD_Licensing_Window_end_Zoe>
    <HD_Purchase_Window_Start_Zoe></HD_Purchase_Window_Start_Zoe>

我想合并xml1和xml2并输出如下所示

<Title>Sea Change</Title>
    <thirdParty_ID></thirdParty_ID>
    <Animation_Indicator>N</Animation_Indicator>
    <Blackout_Indicator>N</Blackout_Indicator>
<SD_Purchase_Zoe>Y</SD_Purchase_Zoe>
    <SD_Purchase_Window_Start_Zoe>2012-04-01</SD_Purchase_Window_Start_Zoe>
    <SD_Purchase_Window_End_Zoe>2013-04-01</SD_Purchase_Window_End_Zoe>
    <SD_Licensing_Window_start_Zoe>2012-04-01</SD_Licensing_Window_start_Zoe>
    <SD_Licensing_Window_start_Zoe></SD_Licensing_Window_start_Zoe>
<HD_Licensing_Window_start_Zoe>2012-04-01</HD_Licensing_Window_start_Zoe>
    <HD_Licensing_Window_end_Zoe>2013-04-01</HD_Licensing_Window_end_Zoe>
    <HD_Purchase_Window_Start_Zoe>2012-04-01</HD_Purchase_Window_Start_Zoe>

首先，我需要检查这两个xml是否有相同的标题，如果它们有相同的标题，合并它们，并合并所有的值，如果可以找到它们中的任何一个。

感谢您的回复。

Answer 1

我写了一些这样的想法：

$x1 = <<<XML
<xml>
<Title>Sea Change</Title>
<thirdParty_ID></thirdParty_ID>
<Animation_Indicator>N</Animation_Indicator>
<Blackout_Indicator>N</Blackout_Indicator>
<SD_Purchase_Zoe></SD_Purchase_Zoe>
<SD_Purchase_Window_Start_Zoe></SD_Purchase_Window_Start_Zoe>
<SD_Purchase_Window_End_Zoe></SD_Purchase_Window_End_Zoe>
<SD_Licensing_Window_start_Zoe></SD_Licensing_Window_start_Zoe>
<HD_Licensing_Window_start_Zoe>2012-04-01</HD_Licensing_Window_start_Zoe>
<HD_Licensing_Window_end_Zoe>2013-04-01</HD_Licensing_Window_end_Zoe>
<HD_Purchase_Window_Start_Zoe>2012-04-01</HD_Purchase_Window_Start_Zoe>
</xml>
XML;

$x2 = <<<XML
<xml>
<Title>Sea Change</Title>
<thirdParty_ID></thirdParty_ID>
<Animation_Indicator>N</Animation_Indicator>
<Blackout_Indicator>N</Blackout_Indicator>
<SD_Purchase_Zoe>Y</SD_Purchase_Zoe>
<SD_Purchase_Window_Start_Zoe>2012-04-01</SD_Purchase_Window_Start_Zoe>
<SD_Purchase_Window_End_Zoe>2013-04-01</SD_Purchase_Window_End_Zoe>
<SD_Licensing_Window_start_Zoe>2012-04-01</SD_Licensing_Window_start_Zoe>
<HD_Licensing_Window_start_Zoe></HD_Licensing_Window_start_Zoe>
<HD_Licensing_Window_end_Zoe></HD_Licensing_Window_end_Zoe>
<HD_Purchase_Window_Start_Zoe></HD_Purchase_Window_Start_Zoe>
</xml>
XML;

$oXML1 = new SimpleXMLElement($x1);
$oXML2 = new SimpleXMLElement($x2);

$oOutput = new SimpleXMLElement('<xml></xml>');

foreach ( $oXML1 as $key => $value )
{
    if ( empty($value[0]) )
        $oOutput->addChild($key, $oXML2->{$key}[0]);
    else
        $oOutput->addChild($key, $value[0]);
}

print_r($oOutput->asXML());