如何将数组转换为PHP中的SimpleXML对象?
当前回答
我认为上面所有的解决方案都很好，但我看到目前为止，它并没有真正创建一个准确的格式良好的XML，因为数组键与$my_array[main_node][multiple_values][] = ARRAY ('id' => '1')然后转换为
<main_node>
<multiple_values>
<0>
<id>1 test</id>
</0>
</multiple_values>
<multiple_values>
<1>
<id>2 test</id>
</1>
</multiple_values>
</main_node>
这是XML解析器方面的一个问题……
I should be like this:
<main_node>
<multiple_values>
<id>1 test</id>
</multiple_values>
<multiple_values>
<id>2 test</id>
</multiple_values>
</main_node>
如果你用load_simple_xml来解析…你会得到完全相同的数组/对象结构。
我的函数还自动创建正确的根节点。
// Code to convert php array to xml document 20211112
function array2xml(array $data, $xml_class_obj = '', $group_by_parent_allowed = '', $options = array())
{
if(!$xml_class_obj) :
$is_root = 1;
$xml_class_obj = new XMLWriter();
$xml_class_obj->openMemory();
$xml_class_obj->setIndent(TRUE);
$xml_class_obj->setIndentString(' ');
if($options['encoding'] != '') $xml_class_obj->startDocument('1.0', $options['encoding']);
else $xml_class_obj->startDocument('1.0');
endif;
foreach ($data as $key => $value) {
if (is_array($value)) { // IS ARRAY
// check if allow below keys are int, if yes group them to same parent tree
$group_by_parent = $key;
foreach(array_keys($value) as $c_keys) :
if(!is_int($c_keys)) $group_by_parent = '';
endforeach;
if(empty($group_by_parent)) $xml_class_obj->startElement($key);
if($group_by_parent_allowed != '') $xml_class_obj->startElement($group_by_parent_allowed);
$this->array2xml($value, $xml_class_obj, $group_by_parent, $options);
if(empty($group_by_parent)) $xml_class_obj->endElement();
} else { // IS VALUE
if(is_string($value)) :
$xml_class_obj->startElement($key);
$xml_class_obj->writeCData($value);
$xml_class_obj->endElement();
else :
$xml_class_obj->writeElement($key, $value);
endif;
}
} // foreach
if($group_by_parent_allowed != '') $xml_class_obj->endElement();
if($is_root == 1) :
$xml_class_obj->endDocument();
return $xml_class_obj->outputMemory();
else :
return $xml_class_obj;
endif;
}
// usage
$ary_new_xml = array();
$ary_new_xml['order']['customer']['customerid'] = '123456';
$ary_new_xml['order']['customer']['customertype'] = 15;
$ary_new_xml['order']['orderprio'] = 2;
$ary_new_xml['order']['orderpos'][] = array('sku' => 9999910001111, 'quantity' => 3);
$ary_new_xml['order']['orderpos'][] = array('sku' => 9999910002222, 'quantity' => 1);
echo array2xml($ary_new_xml,'','',array('enconding' => 'UTF-8'));
结果:
<?xml version="1.0" encoding="UTF-8"?>
<order>
<customer>
<customerid>82936639</customerid>
<customertype>15</customertype>
</customer>
<orderprio>2</orderprio>
<orderpos>
<sku>9999910001111</sku>
<quantity>3</quantity>
</orderpos>
<orderpos>
<sku>9999910002222</sku>
<quantity>1</quantity>
</orderpos>
</order>
我希望这能帮助到一些人;)
其他回答
我想要一个代码，将一个数组内的所有元素，并把它们作为属性，所有数组作为子元素。
对于像这样的东西
array (
'row1' => array ('head_element' =>array("prop1"=>"some value","prop2"=>array("empty"))),
"row2"=> array ("stack"=>"overflow","overflow"=>"overflow")
);
我会得到这样的结果
<?xml version="1.0" encoding="utf-8"?>
<someRoot>
<row1>
<head_element prop1="some value">
<prop2 0="empty"/>
</head_element>
</row1>
<row2 stack="overflow" overflow="stack"/>
</someRoot>
要实现这一点，代码如下，但要非常小心，它是递归的，实际上可能会导致stackoverflow:)
function addElements(&$xml,$array)
{
$params=array();
foreach($array as $k=>$v)
{
if(is_array($v))
addElements($xml->addChild($k), $v);
else $xml->addAttribute($k,$v);
}
}
function xml_encode($array)
{
if(!is_array($array))
trigger_error("Type missmatch xml_encode",E_USER_ERROR);
$xml=new SimpleXMLElement('<?xml version=\'1.0\' encoding=\'utf-8\'?><'.key($array).'/>');
addElements($xml,$array[key($array)]);
return $xml->asXML();
}
您可能希望添加数组长度检查，以便在数据部分中设置某些元素，而不是作为属性。
function toXML($data, $obj = false, $dom) {
$is_first_level = false;
if($obj === false) {
$dom = new DomDocument('1.0');
$obj = $dom;
$is_first_level = true;
}
if(is_array($data)) {
foreach($data as $key => $item) {
$this->toXML($item, $obj->appendChild($dom->createElement($key)), $dom);
}
}else {
$obj->appendChild($dom->createTextNode($data));
}
if($is_first_level) {
$obj->formatOutput = true;
return $obj->saveXML();
}
return $obj;
}
你可以使用胡子模板引擎，并制作一个模板，如:
{{#RECEIVER}}
<RECEIVER>
<COMPANY>{{{COMPANY}}}</COMPANY>
<CONTACT>{{{CONTACT}}}</CONTACT>
<ADDRESS>{{{ADDRESS}}}</ADDRESS>
<ZIP>{{ZIP}}</ZIP>
<CITY>{{{CITY}}}</CITY>
</RECEIVER>
{{/RECEIVER}}
{{#DOC}}
<DOC>
<TEXT>{{{TEXT}}}</TEXT>
<NUMBER>{{{NUMBER}}}</NUMBER>
</DOC>
{{/DOC}}
在PHP中这样使用它:
require_once( __DIR__ .'/../controls/Mustache/Autoloader.php' );
Mustache_Autoloader::register();
$oMustache = new Mustache_Engine();
$sTemplate = implode( '', file( __DIR__ ."/xml.tpl" ));
$return = $oMustache->render($sTemplate, $res);
echo($return);
如果你使用magento，你有这种类型的关联数组
$test_array = array (
'0' => array (
'category_id' => '582',
'name' => 'Surat',
'parent_id' => '565',
'child_id' => '567',
'active' => '1',
'level' => '6',
'position' => '17'
),
'1' => array (
'category_id' => '567',
'name' => 'test',
'parent_id' => '0',
'child_id' => '576',
'active' => '0',
'level' => '0',
'position' => '18'
),
);
那么最好将关联数组转换为XML格式。在控制器文件中使用此代码。
$this->loadLayout(false);
//header ("content-type: text/xml");
$this->getResponse()->setHeader('Content-Type','text/xml');
$this->renderLayout();
$clArr2xml = new arr2xml($test_array, 'utf-8', 'listdata');
$output = $clArr2xml->get_xml();
print $output;
class arr2xml
{
var $array = array();
var $xml = '';
var $root_name = '';
var $charset = '';
public function __construct($array, $charset = 'utf-8', $root_name = 'root')
{
header ("content-type: text/xml");
$this->array = $array;
$this->root_name = $root_name;
$this->charset = $charset;
if (is_array($array) && count($array) > 0) {
$this->struct_xml($array);
} else {
$this->xml .= "no data";
}
}
public function struct_xml($array)
{
foreach ($array as $k => $v) {
if (is_array($v)) {
$tag = ereg_replace('^[0-9]{1,}', 'item', $k); // replace numeric key in array to 'data'
$this->xml .= "<$tag>";
$this->struct_xml($v);
$this->xml .= "</$tag>";
} else {
$tag = ereg_replace('^[0-9]{1,}', 'item', $k); // replace numeric key in array to 'data'
$this->xml .= "<$tag><![CDATA[$v]]></$tag>";
}
}
}
public function get_xml()
{
$header = "<?xml version=\"1.0\" encoding=\"" . $this->charset . "\"?><" . $this->root_name . ">";
$footer = "</" . $this->root_name . ">";
return $header . $this->xml . $footer;
}
}
我希望这对大家都有帮助。
我发现所有的答案都是使用过多的代码。这里有一个简单的方法:
function to_xml(SimpleXMLElement $object, array $data)
{
foreach ($data as $key => $value) {
if (is_array($value)) {
$new_object = $object->addChild($key);
to_xml($new_object, $value);
} else {
// if the key is an integer, it needs text with it to actually work.
if ($key != 0 && $key == (int) $key) {
$key = "key_$key";
}
$object->addChild($key, $value);
}
}
}
然后，将数组发送到使用递归的函数中就很简单了，因此它将处理多维数组:
$xml = new SimpleXMLElement('<rootTag/>');
to_xml($xml, $my_array);
现在$xml包含了一个漂亮的xml对象，它完全基于您编写数组的方式。
print $xml->asXML();
