将 PHP 关联数组传入和传出 XML
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Passing PHP associative arrays to and from XML
提问by Shabbyrobe
Is there an easy way to marshal a PHP associative array to and from XML? For example, I have the following array:
是否有一种简单的方法可以将 PHP 关联数组编组到 XML 或从 XML 编组？例如，我有以下数组：
$items = array("1", "2",
array(
"item3.1" => "3.1",
"item3.2" => "3.2"
"isawesome" => true
)
);
How would I turn it into something similar to the following XML in as few lines as possible, then back again?
我如何在尽可能少的行中将其转换为类似于以下 XML 的内容，然后再返回？
<items>
<item>1</item>
<item>2</item>
<item>
<item3_1>3.1</item3_1>
<item3_2>3.2</item3_2>
<isawesome>true</isawesome>
</item>
</items>
I don't really care if I have to change the array structure a bit or if the XML that comes out is different to the above example. I've been trying to work with PHP's XMLReaderand XMLWriter, but the documentation is so poor and the code I've produced as a consequence looks nothing like what I feel it should look like:
我真的不在乎是否必须稍微更改数组结构，或者出现的 XML 是否与上面的示例不同。我一直在尝试使用 PHP 的XMLReader和XMLWriter，但是文档太差了，因此我生成的代码看起来不像我觉得它应该是什么样子：
$xml = SomeXMLWriter::writeArrayToXml($items);
$array = SomeXMLWriter::writeXmlToArray($xml);
Does it really have to be any harder than that to get a basic, raw XML dump of a PHP array without writing my own custom class?
在不编写自己的自定义类的情况下，获得 PHP 数组的基本原始 XML 转储真的比这更难吗？
I try to avoid PEAR. In addition to the configuration headaches I've had with it, I've never stuck with any of the packages I've ever used from it.
我尽量避免 PEAR。除了我对它的配置头疼之外，我从来没有坚持使用我曾经使用过的任何软件包。
采纳答案by Conrad
For those of you not using the PEAR packages, but you've got PHP5 installed. This worked for me:
对于那些不使用 PEAR 包但已经安装了 PHP5 的人。这对我有用：
/**
* Build A XML Data Set
*
* @param array $data Associative Array containing values to be parsed into an XML Data Set(s)
* @param string $startElement Root Opening Tag, default fx_request
* @param string $xml_version XML Version, default 1.0
* @param string $xml_encoding XML Encoding, default UTF-8
* @return string XML String containig values
* @return mixed Boolean false on failure, string XML result on success
*/
public function buildXMLData($data, $startElement = 'fx_request', $xml_version = '1.0', $xml_encoding = 'UTF-8') {
if(!is_array($data)) {
$err = 'Invalid variable type supplied, expected array not found on line '.__LINE__." in Class: ".__CLASS__." Method: ".__METHOD__;
trigger_error($err);
if($this->_debug) echo $err;
return false; //return false error occurred
}
$xml = new XmlWriter();
$xml->openMemory();
$xml->startDocument($xml_version, $xml_encoding);
$xml->startElement($startElement);
/**
* Write XML as per Associative Array
* @param object $xml XMLWriter Object
* @param array $data Associative Data Array
*/
function write(XMLWriter $xml, $data) {
foreach($data as $key => $value) {
if(is_array($value)) {
$xml->startElement($key);
write($xml, $value);
$xml->endElement();
continue;
}
$xml->writeElement($key, $value);
}
}
write($xml, $data);
$xml->endElement();//write end element
//Return the XML results
return $xml->outputMemory(true);
}
回答by xrado
class Xml {
public static function from_array($arr, $xml = NULL)
{
$first = $xml;
if($xml === NULL) $xml = new SimpleXMLElement('<root/>');
foreach ($arr as $k => $v)
{
is_array($v)
? self::from_array($v, $xml->addChild($k))
: $xml->addChild($k, $v);
}
return ($first === NULL) ? $xml->asXML() : $xml;
}
public static function to_array($xml)
{
$xml = simplexml_load_string($xml);
$json = json_encode($xml);
return json_decode($json,TRUE);
}
}
$xml = xml::from_array($array);
$array = xml::to_array($xml);
回答by xrado
I've had some of these same issues, and so I created two classes:
我遇到了一些相同的问题，所以我创建了两个类：
bXml
xml文件
A class that extends SimpleXml and corrects some of the problems it has. Like not being able to add CData nodes or Comment nodes. I also added some additional features, like using the php streams functionality to add child nodes $oXml->AddChild("file:///user/data.xml")or add XML string child nodes like $oXml->AddChild("<more><xml>yes</xml></more>");but basically I just wanted to fix the simpleXML problems.
一个扩展 SimpleXml 并纠正它的一些问题的类。就像无法添加 CData 节点或 Comment 节点一样。我还添加了一些附加功能，例如使用 php 流功能添加子节点$oXml->AddChild("file:///user/data.xml")或添加 XML 字符串子节点，$oXml->AddChild("<more><xml>yes</xml></more>");但基本上我只想解决 simpleXML 问题。
bArray
数组
I extended the ArrayObject class so that all array functionality could be object oriented and consistent, so you don't need to remember that array_walk operates on the array by reference, while array_filter operates on the array by value. So you can do things like $oArray->flip()->Reverse()->Walk(/*callback*/);then still access the value the same way you normally would like $oArray[key].
我扩展了 ArrayObject 类，以便所有数组功能都可以面向对象且保持一致，因此您无需记住 array_walk 通过引用对数组进行操作，而 array_filter 通过值对数组进行操作。所以你可以做这样的事情，$oArray->flip()->Reverse()->Walk(/*callback*/);然后仍然以你通常想要的方式访问该值$oArray[key]。
Both of the methods output themselves as Arrays and Xml so you can jump seamlessly between them. So you can $oXml->AsArray();or $oArray->AsXml();I found that it was easier to do this than to constantly pass things back and forth between array2xml or xml2array methods.
这两种方法都将自身输出为数组和 Xml，因此您可以在它们之间无缝跳转。所以你可以$oXml->AsArray();或$oArray->AsXml();我发现这样做比在 array2xml 或 xml2array 方法之间不断来回传递更容易。
http://code.google.com/p/blibrary/source
http://code.google.com/p/blibrary/source
Both classes are can be overridden to make a custom class of your choosing and can be used independently of one another.
这两个类都可以被覆盖以创建您选择的自定义类，并且可以相互独立使用。
回答by cruizer
Have you seen the PEAR package XML_Serializer?
你见过 PEAR 包 XML_Serializer 吗？
回答by Eduardo Marinho
Try Zend_Config and Zend Framework in general.
一般尝试 Zend_Config 和 Zend Framework。
I imagine it would be a 2 step process: array to Zend_Config, Zend_Config to XML.
我想这将是一个 2 步过程：数组到 Zend_Config，Zend_Config 到 XML。
回答by DreamWerx
Sounds like a job for SimpleXML.
听起来像是 SimpleXML 的工作。
I would suggest a slightly different XML structure..
我建议稍微不同的 XML 结构..
And wonder why you need to convert from an array -> XML and back.. If you can modify the array structure as you said why not just generate XML instead? If some piece of code already exists that takes that array configuration, just modify it to accept the XML instead. Then you have 1 data format/ input type, and don't need to convert at all..
并想知道为什么您需要从数组转换 -> XML 并返回.. 如果您可以像您所说的那样修改数组结构，为什么不直接生成 XML 呢？如果某些代码已经存在采用该数组配置，只需修改它以接受 XML。然后你有 1 种数据格式/输入类型，根本不需要转换..
<items>
<item id="1"/>
<item id="2"/>
<item id="3">
<subitems>
<item id="3.1"/>
<item id="3.2" isawesome="true"/>
</subitems>
</item>
</items>
回答by gskluzacek
Here's a function that I wrote to take XML and converts it to a PHP Associative Array. One Caveat is that id does not currently handle attributes or c-data. Though it will handle repeated XML Tag at the same level by placing them into an array named after the tag.
这是我编写的一个函数，用于获取 XML 并将其转换为 PHP 关联数组。一个警告是 id 当前不处理属性或 c 数据。尽管它将通过将它们放入以标签命名的数组中来处理同一级别的重复 XML 标签。
<?php
$xml_req1 = <<<XML
<?xml version="1.0"?>
<Vastera:CustomerValidation_RequestInfo
xmlns:Vastera="http://ndc-ah-prd.am.mot.com:10653/MotVastera_CustomerValidation/MC000078/Docs/">
<PartnerID>5550000100-003</PartnerID>
<PartnerType>PTNR_INTER_CONSIGNEE</PartnerType>
<OperatingUnit>100</OperatingUnit>
<Status>ACTIVE</Status>
<CustomerSeqNumber>111</CustomerSeqNumber>
<CustomerName>Greg Co</CustomerName>
<Address1>123 Any Ln</Address1>
<Address2>?</Address2>
<Address3>?</Address3>
<Address4>?</Address4>
<Address5>?</Address5>
<City>Someplace</City>
<PostalCode>603021</PostalCode>
<State>CA</State>
<CountryCode>US</CountryCode>
<TaxReference>222</TaxReference>
<PartyRelated>Y</PartyRelated>
<BusinessUnit>GSBU</BusinessUnit>
<Region>GSRGN</Region>
<LocationName>DBA Mac Head Computing</LocationName>
<LoadOnly>N</LoadOnly>
<VSTM>333</VSTM>
<MilitaryCustomerFlag>Y</MilitaryCustomerFlag>
<USFederalGovernmentCustomer>Y</USFederalGovernmentCustomer>
<Non-USGovernmentCustomer>Y</Non-USGovernmentCustomer>
<Vastera:EPCIActivity>
<EPCIActivityNuclearCode>NUCLEAR</EPCIActivityNuclearCode>
<EPCIActivityNuclearValue>N</EPCIActivityNuclearValue>
<EPCIActivityNuclearApproveDate>2011-05-16:07:19:37</EPCIActivityNuclearApproveDate>
<EPCIActivityNuclearExpireDate>2056-12-31:12:00:00</EPCIActivityNuclearExpireDate>
<EPCIActivityNuclearCountry>US</EPCIActivityNuclearCountry>
<EPCIActivityChemBioCode>CHEM_BIO</EPCIActivityChemBioCode>
<EPCIActivityChemBioValue>N</EPCIActivityChemBioValue>
<EPCIActivityChemBioApproveDate>2011-05-16:07:19:37</EPCIActivityChemBioApproveDate>
<EPCIActivityChemBioExpireDate>2056-12-31:12:00:00</EPCIActivityChemBioExpireDate>
<EPCIActivityChemBioCountry>US</EPCIActivityChemBioCountry>
<EPCIActivityMissileCode>MISSILE</EPCIActivityMissileCode>
<EPCIActivityMissileValue>N</EPCIActivityMissileValue>
<EPCIActivityMissileApproveDate>2011-05-16:07:19:37</EPCIActivityMissileApproveDate>
<EPCIActivityMissileExpireDate>2056-12-31:12:00:00</EPCIActivityMissileExpireDate>
<EPCIActivityMissileCountry>US</EPCIActivityMissileCountry>
</Vastera:EPCIActivity>
<SourceSystem>GSB2BSS</SourceSystem>
<CreatedDate>2011-05-16:07:18:55</CreatedDate>
<CreatedBy>c18530</CreatedBy>
<LastModifiedDate>2011-05-16:07:18:55</LastModifiedDate>
<LastModifiedBy>c18530</LastModifiedBy>
<ContactName>Greg, "Da Man" Skluacek</ContactName>
<ContactTitle>Head Honcho</ContactTitle>
<ContactPhone>555-555-5555</ContactPhone>
<ContactFax>666-666-6666</ContactFax>
<ContactEmail>[email protected]</ContactEmail>
<ContactWeb>www.gregco.com</ContactWeb>
</Vastera:CustomerValidation_RequestInfo>
XML;
$xml_req2 = <<<XML
<?xml version="1.0"?>
<order>
<orderNumber>123</orderNumber>
<customerAddress>
<type>Ship To</type>
<name>Bob McFly</name>
<addr1>123 Lincoln St</addr1>
<city>Chicago</city>
<state>IL</state>
<zip>60001</zip>
</customerAddress>
<customerAddress>
<type>Bill To</type>
<name>McFly Products Inc.</name>
<addr1>P.O. Box 6695</addr1>
<city>New York</city>
<state>NY</state>
<zip>99081-6695</zip>
</customerAddress>
<item>
<line>1</line>
<part>123001A</part>
<qty>5</qty>
<price>10.25</price>
</item>
<item>
<line>2</line>
<part>456002B</part>
<qty>3</qty>
<price>20.50</price>
</item>
<item>
<line>3</line>
<part>789003C</part>
<qty>1</qty>
<price>41.00</price>
</item>
<orderSubTotal>133.25</orderSubTotal>
<tax>6.66</tax>
<shipping>10.00</shipping>
<orderTotal>149.91</orderTotal>
</order>
XML;
$doc = new DOMDocument();
$doc->preserveWhiteSpace = false;
$doc->loadXML($xml_req1);
$arr = xml_to_arr($doc->documentElement);
print "\n\n----\n\n";
print_r($arr);
print "\n\n----\n\n";
$doc2 = new DOMDocument();
$doc2->preserveWhiteSpace = false;
$doc2->loadXML($xml_req2);
$arr2 = xml_to_arr($doc2->documentElement);
print "\n\n----\n\n";
print_r($arr2);
print "\n\n----\n\n";
exit;
function xml_to_arr($curr_node) {
$val_array = array();
$typ_array = array();
foreach($curr_node->childNodes as $node) {
if ($node->nodeType == XML_ELEMENT_NODE) {
$val = xml_to_arr($node);
if (array_key_exists($node->tagName, $val_array)) {
if (!is_array($val_array[$node->tagName]) || $type_array[$node->tagName] == 'hash') {
$existing_val = $val_array[$node->tagName];
unset($val_array[$node->tagName]);
$val_array[$node->tagName][0] = $existing_val;
$type_array[$node->tagName] = 'array';
}
$val_array[$node->tagName][] = $val;
} else {
$val_array[$node->tagName] = $val;
if (is_array($val)) {
$type_array[$node->tagName] = 'hash';
}
} // end if array key exists
} // end if elment node
}// end for each
if (count($val_array) == 0) {
return $curr_node->nodeValue;
} else {
return $val_array;
}
} // end function xml to arr
?>
example output
示例输出
----
Array
(
[PartnerID] => 5550000100-003
[PartnerType] => PTNR_INTER_CONSIGNEE
[OperatingUnit] => 100
[Status] => ACTIVE
[CustomerSeqNumber] => 111
[CustomerName] => Greg Co
[Address1] => 123 Any Ln
[Address2] => ?
[Address3] => ?
[Address4] => ?
[Address5] => ?
[City] => Somplace
[PostalCode] => 60123
[State] => CA
[CountryCode] => US
[TaxReference] => 222
[PartyRelated] => Y
[BusinessUnit] => GSBU
[Region] => GSRGN
[LocationName] => DBA Mac Head Computing
[LoadOnly] => N
[VSTM] => 333
[MilitaryCustomerFlag] => Y
[USFederalGovernmentCustomer] => Y
[Non-USGovernmentCustomer] => Y
[Vastera:EPCIActivity] => Array
(
[EPCIActivityNuclearCode] => NUCLEAR
[EPCIActivityNuclearValue] => N
[EPCIActivityNuclearApproveDate] => 2011-05-16:07:19:37
[EPCIActivityNuclearExpireDate] => 2056-12-31:12:00:00
[EPCIActivityNuclearCountry] => US
[EPCIActivityChemBioCode] => CHEM_BIO
[EPCIActivityChemBioValue] => N
[EPCIActivityChemBioApproveDate] => 2011-05-16:07:19:37
[EPCIActivityChemBioExpireDate] => 2056-12-31:12:00:00
[EPCIActivityChemBioCountry] => US
[EPCIActivityMissileCode] => MISSILE
[EPCIActivityMissileValue] => N
[EPCIActivityMissileApproveDate] => 2011-05-16:07:19:37
[EPCIActivityMissileExpireDate] => 2056-12-31:12:00:00
[EPCIActivityMissileCountry] => US
)
[SourceSystem] => GSB2BSS
[CreatedDate] => 2011-05-16:07:18:55
[CreatedBy] => c18530
[LastModifiedDate] => 2011-05-16:07:18:55
[LastModifiedBy] => c18530
[ContactName] => Greg, "Da Man" Skluacek
[ContactTitle] => Head Honcho
[ContactPhone] => 555-555-5555
[ContactFax] => 666-666-6666
[ContactEmail] => [email protected]
[ContactWeb] => www.gregco.com
)
----
Array
(
[orderNumber] => 123
[customerAddress] => Array
(
[0] => Array
(
[type] => Ship To
[name] => Bob McFly
[addr1] => 123 Lincoln St
[city] => Chicago
[state] => IL
[zip] => 60001
)
[1] => Array
(
[type] => Bill To
[name] => McFly Products Inc.
[addr1] => P.O. Box 6695
[city] => New York
[state] => NY
[zip] => 99081-6695
)
)
[item] => Array
(
[0] => Array
(
[line] => 1
[part] => 123001A
[qty] => 5
[price] => 10.25
)
[1] => Array
(
[line] => 2
[part] => 456002B
[qty] => 3
[price] => 20.50
)
[2] => Array
(
[line] => 3
[part] => 789003C
[qty] => 1
[price] => 41.00
)
)
[orderSubTotal] => 133.25
[tax] => 6.66
[shipping] => 10.00
[orderTotal] => 149.91
)
--------
回答by ángel López
Hey @Conrad I just modify your code to work well with numeric arrays:
嘿@Conrad 我只是修改您的代码以与数字数组配合使用：
/**
* Build A XML Data Set
*
* @param array $data Associative Array containing values to be parsed into an XML Data Set(s)
* @param string $startElement Root Opening Tag, default fx_request
* @param string $xml_version XML Version, default 1.0
* @param string $xml_encoding XML Encoding, default UTF-8
* @return string XML String containig values
* @return mixed Boolean false on failure, string XML result on success
*/
public static function arrayToXML($data, $startElement = 'fx_request', $xml_version = '1.0', $xml_encoding = 'UTF-8'){
if(!is_array($data)){
$err = 'Invalid variable type supplied, expected array not found on line '.__LINE__." in Class: ".__CLASS__." Method: ".__METHOD__;
trigger_error($err);
if($this->_debug) echo $err;
return false; //return false error occurred
}
$xml = new XmlWriter();
$xml->openMemory();
$xml->startDocument($xml_version, $xml_encoding);
$xml->startElement($startElement);
/**
* Write XML as per Associative Array
* @param object $xml XMLWriter Object
* @param array $data Associative Data Array
*/
function write(XMLWriter $xml, $data){
foreach($data as $key => $value){
if (is_array($value) && isset($value[0])){
foreach($value as $itemValue){
//$xml->writeElement($key, $itemValue);
if(is_array($itemValue)){
$xml->startElement($key);
write($xml, $itemValue);
$xml->endElement();
continue;
}
if (!is_array($itemValue)){
$xml->writeElement($key, $itemValue."");
}
}
}else if(is_array($value)){
$xml->startElement($key);
write($xml, $value);
$xml->endElement();
continue;
}
if (!is_array($value)){
$xml->writeElement($key, $value."");
}
}
}
write($xml, $data);
$xml->endElement();//write end element
//returns the XML results
return $xml->outputMemory(true);
}
so yo can convert this:
所以你可以转换这个：
$mArray["invitations"]["user"][0]["name"] = "paco";
$mArray["invitations"]["user"][0]["amigos"][0] = 82;
$mArray["invitations"]["user"][0]["amigos"][1] = 29;
$mArray["invitations"]["user"][0]["amigos"][2] = 6;
$mArray["invitations"]["user"][1]["name"] = "jose";
$mArray["invitations"]["user"][1]["amigos"][0] = 43;
$mArray["invitations"]["user"][1]["amigos"][1]["tuyos"] = 32;
$mArray["invitations"]["user"][1]["amigos"][1]["mios"] = 79;
$mArray["invitations"]["user"][1]["amigos"][2] = 11;
$mArray["invitations"]["user"][2]["name"] = "luis";
$mArray["invitations"]["user"][2]["amigos"][0] = 65;
into this xml:
进入这个xml：
<invitations>
<user>
<name>paco</name>
<amigos>82</amigos>
<amigos>29</amigos>
<amigos>6</amigos>
</user>
<user>
<name>jose</name>
<amigos>43</amigos>
<amigos>
<tuyos>32</tuyos>
<mios>79</mios>
</amigos>
<amigos>11</amigos>
</user>
<user>
<name>luis</name>
<amigos>65</amigos>
</user>
I hope I can help someone with this
我希望我能帮助别人
回答by Dan James
This builds on ángel López's answer. Added support for attributes. If an element has attributes, prefix them with @, and refer to the actual element content with an empty string as the key.
这建立在 angel López 的回答之上。添加了对属性的支持。如果一个元素有属性，用@作为前缀，并以空字符串作为键引用实际元素内容。
/**
* Build an XML Data Set
*
* @param array $data Associative Array containing values to be parsed into an XML Data Set(s)
* @param string $startElement Root Opening Tag, default fx_request
* @param string $xml_version XML Version, default 1.0
* @param string $xml_encoding XML Encoding, default UTF-8
* @return string XML String containig values
* @return mixed Boolean false on failure, string XML result on success
*/
function arrayToXML($data, $startElement = 'fx_request', $xml_version = '1.0', $xml_encoding = 'UTF-8'){
if(!is_array($data)){
$err = 'Invalid variable type supplied, expected array not found on line '.__LINE__." in Class: ".__CLASS__." Method: ".__METHOD__;
trigger_error($err);
//if($this->_debug) echo $err;
return false; //return false error occurred
}
$xml = new XmlWriter();
$xml->openMemory();
$xml->startDocument($xml_version, $xml_encoding);
$xml->startElement($startElement);
/**
* Write keys in $data prefixed with @ as XML attributes, if $data is an array. When an @ prefixed key is found, a '' key is expected to indicate the element itself.
* @param object $xml XMLWriter Object
* @param array $data with attributes filtered out
*/
function writeAttr(XMLWriter $xml, $data) {
if(is_array($data)) {
$nonAttributes = array();
foreach($data as $key => $val) {
//handle an attribute with elements
if($key[0] == '@') {
$xml->writeAttribute(substr($key, 1), $val);
} else if($key == '') {
if(is_array($val)) $nonAttributes = $val;
else $xml->text("$val");
}
//ignore normal elements
else $nonAttributes[$key] = $val;
}
return $nonAttributes;
}
else return $data;
}
/**
* Write XML as per Associative Array
* @param object $xml XMLWriter Object
* @param array $data Associative Data Array
*/
function writeEl(XMLWriter $xml, $data) {
foreach($data as $key => $value) {
if(is_array($value) && isset($value[0])) { //numeric array
foreach($value as $itemValue){
if(is_array($itemValue)) {
$xml->startElement($key);
$itemValue = writeAttr($xml, $itemValue);
writeEl($xml, $itemValue);
$xml->endElement();
} else {
$itemValue = writeAttr($xml, $itemValue);
$xml->writeElement($key, "$itemValue");
}
}
} else if(is_array($value)) { //associative array
$xml->startElement($key);
$value = writeAttr($xml, $value);
writeEl($xml, $value);
$xml->endElement();
} else { //scalar
$value = writeAttr($xml, $value);
$xml->writeElement($key, "$value");
}
}
}
writeEl($xml, $data);
$xml->endElement();//write end element
//returns the XML results
return $xml->outputMemory(true);
}
so yo can convert this:
所以你可以转换这个：
$mArray["invitations"]["user"][0]["@name"] = "paco";
$mArray["invitations"]["user"][0][""]["amigos"][0] = 82;
$mArray["invitations"]["user"][0][""]["amigos"][1] = 29;
$mArray["invitations"]["user"][0][""]["amigos"][2] = 6;
$mArray["invitations"]["user"][1]["@name"] = "jose";
$mArray["invitations"]["user"][1][""]["amigos"][0] = 43;
$mArray["invitations"]["user"][1][""]["amigos"][1]["tuyos"] = 32;
$mArray["invitations"]["user"][1][""]["amigos"][1]["mios"] = 79;
$mArray["invitations"]["user"][1][""]["amigos"][2] = 11;
$mArray["invitations"]["user"][2]["@name"] = "luis";
$mArray["invitations"]["user"][2][""]["amigos"][0] = 65;
into this xml:
进入这个xml：
<invitations>
<user name="paco">
<amigos>82</amigos>
<amigos>29</amigos>
<amigos>6</amigos>
</user>
<user name="jose">
<amigos>43</amigos>
<amigos>
<tuyos>32</tuyos>
<mios>79</mios>
</amigos>
<amigos>11</amigos>
</user>
<user name="luis">
<amigos>65</amigos>
</user>
</invitations>
Thanks ángel.
谢谢天使。
