如何将数组转换为xml

Question

我想从一个数组的foreach循环中获取一个xml文件，但即时获取xml文件中只有一行。

是否有另一种方法将数组数据转换为XML格式的文件？

PHP：

$item = array(); 
     $item[] = array('CityId' => $row['city_id'], 
         'StateId' => $row['state_id'], 
         'CityName' => $row['city_name'] 
         ); 

     $break = "<br />"; 
     $quote = '"'; 
     $xml = "<data>"."\n"; 
     foreach($item as $_item) { 

      echo $xml .= "<city CityId=$quote" . $_item['CityId'] . "$quote StateId=$quote" . $_item['StateId'] . "$quote CityName=$quote" . $_item['CityName'] . "$quote />\n"; 

     } 
     $xml .= "</data>"; 
     $sxml = new SimpleXMLElement($xml); 
     echo $output = $sxml->asXML("data.xml"); 

输出data.xml中：

<data> 
<city CityId="1" StateId="217" CityName="New York" /> 
<city CityId="2" StateId="218" CityName="New Jersey" /> 
</data> 

任何帮助表示赞赏。

Answer 1

数据：

$cities = array(
     array(
      'cityId' => 1, 
      'stateId' => 217, 
      'cityName' => 'New York' 
     ), 
     array(
      'cityId' => 2, 
      'stateId' => 0, 
      'cityName' => 'Paris' 
     ), 
    ); 

此：

$xml = new SimpleXMLElement('<data/>'); 
foreach ($cities as $key => $city) 
{ 
    $xml->city[$key]['cityId'] = $city['cityId']; 
    $xml->city[$key]['stateId'] = $city['stateId']; 
    $xml->city[$key]['cityName'] = $city['cityName']; 
} 

OR（更好）：

xml = new SimpleXMLElement('<data/>'); 
foreach ($cities as $cityData) 
{ 
    $city = $xml->addChild('city'); 
    $city->addAttribute('cityId', $cityData['cityId']); 
    $city->addAttribute('stateId', $cityData['stateId']); 
    $city->addAttribute('cityName', $cityData['cityName']); 
} 

将输出：

<data> 
    <city cityId="1" stateId="217" cityName="New York" /> 
    <city cityId="2" stateId="0" cityName="Paris" /> 
</data> 

Answer 2

看看这里。我一直在使用这个函数将数组转换为xml。希望它能帮助你。

http://vantulder.net/old-articles/array-to-xml