如何将数组转换为PHP中的SimpleXML对象?
当前回答
下面是php 5.2代码,将数组的任何深度转换为xml文档:
Array
(
['total_stud']=> 500
[0] => Array
(
[student] => Array
(
[id] => 1
[name] => abc
[address] => Array
(
[city]=>Pune
[zip]=>411006
)
)
)
[1] => Array
(
[student] => Array
(
[id] => 2
[name] => xyz
[address] => Array
(
[city]=>Mumbai
[zip]=>400906
)
)
)
)
生成的XML如下所示:
<?xml version="1.0"?>
<student_info>
<total_stud>500</total_stud>
<student>
<id>1</id>
<name>abc</name>
<address>
<city>Pune</city>
<zip>411006</zip>
</address>
</student>
<student>
<id>1</id>
<name>abc</name>
<address>
<city>Mumbai</city>
<zip>400906</zip>
</address>
</student>
</student_info>
PHP代码片段
<?php
// function defination to convert array to xml
function array_to_xml( $data, &$xml_data ) {
foreach( $data as $key => $value ) {
if( is_array($value) ) {
if( is_numeric($key) ){
$key = 'item'.$key; //dealing with <0/>..<n/> issues
}
$subnode = $xml_data->addChild($key);
array_to_xml($value, $subnode);
} else {
$xml_data->addChild("$key",htmlspecialchars("$value"));
}
}
}
// initializing or creating array
$data = array('total_stud' => 500);
// creating object of SimpleXMLElement
$xml_data = new SimpleXMLElement('<?xml version="1.0"?><data></data>');
// function call to convert array to xml
array_to_xml($data,$xml_data);
//saving generated xml file;
$result = $xml_data->asXML('/file/path/name.xml');
?>
本代码段中使用的SimpleXMLElement::asXML文档
其他回答
我发现这个解与原来的问题相似
<?php
$test_array = array (
'bla' => 'blub',
'foo' => 'bar',
'another_array' => array (
'stack' => 'overflow',
),
);
class NoSimpleXMLElement extends SimpleXMLElement {
public function addChild($name,$value) {
parent::addChild($value,$name);
}
}
$xml = new NoSimpleXMLElement('<root/>');
array_walk_recursive($test_array, array ($xml, 'addChild'));
print $xml->asXML();
// Structered array for XML convertion. $data_array = array( array( '#xml_tag' => 'a', '#xml_value' => '', '#tag_attributes' => array( array( 'name' => 'a_attr_name', 'value' => 'a_attr_value', ), ), '#subnode' => array( array( '#xml_tag' => 'aa', '#xml_value' => 'aa_value', '#tag_attributes' => array( array( 'name' => 'aa_attr_name', 'value' => 'aa_attr_value', ), ), '#subnode' => FALSE, ), ), ), array( '#xml_tag' => 'b', '#xml_value' => 'b_value', '#tag_attributes' => FALSE, '#subnode' => FALSE, ), array( '#xml_tag' => 'c', '#xml_value' => 'c_value', '#tag_attributes' => array( array( 'name' => 'c_attr_name', 'value' => 'c_attr_value', ), array( 'name' => 'c_attr_name_1', 'value' => 'c_attr_value_1', ), ), '#subnode' => array( array( '#xml_tag' => 'ca', '#xml_value' => 'ca_value', '#tag_attributes' => FALSE, '#subnode' => array( array( '#xml_tag' => 'caa', '#xml_value' => 'caa_value', '#tag_attributes' => array( array( 'name' => 'caa_attr_name', 'value' => 'caa_attr_value', ), ), '#subnode' => FALSE, ), ), ), ), ), ); // creating object of SimpleXMLElement $xml_object = new SimpleXMLElement('<?xml version=\"1.0\"?><student_info></student_info>'); // function call to convert array to xml array_to_xml($data_array, $xml_object); // saving generated xml file $xml_object->asXML('/tmp/test.xml'); /** * Converts an structured PHP array to XML. * * @param Array $data_array * The array data for converting into XML. * @param Object $xml_object * The SimpleXMLElement Object * * @see https://gist.github.com/drupalista-br/9230016 * */ function array_to_xml($data_array, &$xml_object) { foreach($data_array as $node) { $subnode = $xml_object->addChild($node['#xml_tag'], $node['#xml_value']); if ($node['#tag_attributes']) { foreach ($node['#tag_attributes'] as $tag_attributes) { $subnode->addAttribute($tag_attributes['name'], $tag_attributes['value']); } } if ($node['#subnode']) { array_to_xml($node['#subnode'], $subnode); } } }
整个XML结构定义在$data数组中:
function array2Xml($data, $xml = null)
{
if (is_null($xml)) {
$xml = simplexml_load_string('<' . key($data) . '/>');
$data = current($data);
$return = true;
}
if (is_array($data)) {
foreach ($data as $name => $value) {
array2Xml($value, is_numeric($name) ? $xml : $xml->addChild($name));
}
} else {
$xml->{0} = $data;
}
if (!empty($return)) {
return $xml->asXML();
}
}
我会评论投票次数第二多的答案,因为如果有数字索引的内部数组,它不会保留结构并生成糟糕的xml。
我基于它开发了自己的版本,因为我需要简单的json和xml之间的转换器,而不管数据的结构。我的版本保留了数字键信息和原始数组的结构。它为数值索引值创建元素,方法是将值包装为值命名的元素,其key-attribute包含数值key。
例如
阵列('测试' = >阵列(0 = >“值”,1 = > '其他'))
皈依
<test><value key="0">some value</value><value key="1">other</value></test>
我的版本的array_to_xml -function(希望它能帮助到某人:)
function array_to_xml($arr, &$xml) {
foreach($arr as $key => $value) {
if(is_array($value)) {
if(!is_numeric($key)){
$subnode = $xml->addChild("$key");
} else {
$subnode = $xml->addChild("value");
$subnode->addAttribute('key', $key);
}
array_to_xml($value, $subnode);
}
else {
if (is_numeric($key)) {
$xml->addChild("value", $value)->addAttribute('key', $key);
} else {
$xml->addChild("$key",$value);
}
}
}
}
以上答案大部分是正确的。然而,我想出了这个答案,它解决了array_walk_recursive的兼容性问题,也解决了数值键的问题。它也通过了我做的所有测试:
function arrayToXML(Array $array, SimpleXMLElement &$xml) {
foreach($array as $key => $value) {
// None array
if (!is_array($value)) {
(is_numeric($key)) ? $xml->addChild("item$key", $value) : $xml->addChild($key, $value);
continue;
}
// Array
$xmlChild = (is_numeric($key)) ? $xml->addChild("item$key") : $xml->addChild($key);
arrayToXML($value, $xmlChild);
}
}
我还为此添加了一个测试类,你可能会发现有用:
class ArrayToXmlTest extends PHPUnit_Framework_TestCase {
public function setUp(){ }
public function tearDown(){ }
public function testFuncExists() {
$this->assertTrue(function_exists('arrayToXML'));
}
public function testFuncReturnsXml() {
$array = array(
'name' => 'ardi',
'last_name' => 'eshghi',
'age' => 31,
'tel' => '0785323435'
);
$xmlEl = new SimpleXMLElement('<root/>');
arrayToXml($array, $xmlEl);
$this->assertTrue($xmlEl instanceOf SimpleXMLElement);
}
public function testAssocArrayToXml() {
$array = array(
'name' => 'ardi',
'last_name' => 'eshghi',
'age' => 31,
'tel' => '0785323435'
);
$expectedXmlEl = new SimpleXMLElement('<root/>');
$expectedXmlEl->addChild('name', $array['name']);
$expectedXmlEl->addChild('last_name', $array['last_name']);
$expectedXmlEl->addChild('age', $array['age']);
$expectedXmlEl->addChild('tel', $array['tel']);
$actualXmlEl = new SimpleXMLElement('<root/>');
arrayToXml($array, $actualXmlEl);
$this->assertEquals($expectedXmlEl->asXML(), $actualXmlEl->asXML());
}
public function testNoneAssocArrayToXml() {
$array = array(
'ardi',
'eshghi',
31,
'0785323435'
);
// Expected xml value
$expectedXmlEl = new SimpleXMLElement('<root/>');
foreach($array as $key => $value)
$expectedXmlEl->addChild("item$key", $value);
// What the function produces
$actualXmlEl = new SimpleXMLElement('<root/>');
arrayToXml($array, $actualXmlEl);
$this->assertEquals($expectedXmlEl->asXML(), $actualXmlEl->asXML());
}
public function testNestedMixArrayToXml() {
$testArray = array(
"goal",
"nice",
"funny" => array(
'name' => 'ardi',
'tel' =>'07415517499',
"vary",
"fields" => array(
'small',
'email' => 'ardi.eshghi@gmail.com'
),
'good old days'
),
"notes" => "come on lads lets enjoy this",
"cast" => array(
'Tom Cruise',
'Thomas Muller' => array('age' => 24)
)
);
// Expected xml value
$expectedXmlEl = new SimpleXMLElement('<root/>');
$expectedXmlEl->addChild('item0', $testArray[0]);
$expectedXmlEl->addChild('item1', $testArray[1]);
$childEl = $expectedXmlEl->addChild('funny');
$childEl->addChild("name", $testArray['funny']['name']);
$childEl->addChild("tel", $testArray['funny']['tel']);
$childEl->addChild("item0", "vary");
$childChildEl = $childEl->addChild("fields");
$childChildEl->addChild('item0', 'small');
$childChildEl->addChild('email', $testArray['funny']['fields']['email']);
$childEl->addChild("item1", 'good old days');
$expectedXmlEl->addChild('notes', $testArray['notes']);
$childEl2 = $expectedXmlEl->addChild('cast');
$childEl2->addChild('item0', 'Tom Cruise');
$childChildEl2 = $childEl2->addChild('Thomas Muller');
$childChildEl2->addChild('age', $testArray['cast']['Thomas Muller']['age']);
// What the function produces
$actualXmlEl = new SimpleXMLElement('<root/>');
arrayToXml($testArray, $actualXmlEl);
$this->assertEquals($expectedXmlEl->asXML(), $actualXmlEl->asXML());
}
}