如何将数组转换为PHP中的SimpleXML对象?
当前回答
只是对上面的函数进行了编辑,当键是数字时,添加前缀“key_”
// initializing or creating array
$student_info = array(your array data);
// creating object of SimpleXMLElement
$xml_student_info = new SimpleXMLElement("<?xml version=\"1.0\"?><student_info></student_info>");
// function call to convert array to xml
array_to_xml($student,$xml_student_info);
//saving generated xml file
$xml_student_info->asXML('file path and name');
function array_to_xml($student_info, &$xml_student_info) {
foreach($student_info as $key => $value) {
if(is_array($value)) {
if(!is_numeric($key)){
$subnode = $xml_student_info->addChild("$key");
array_to_xml($value, $subnode);
}
else{
$subnode = $xml_student_info->addChild("key_$key");
array_to_xml($value, $subnode);
}
}
else {
if(!is_numeric($key)){
$xml_student_info->addChild("$key","$value");
}else{
$xml_student_info->addChild("key_$key","$value");
}
}
}
}
其他回答
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。
另一个改进:
/**
* Converts an array to XML
*
* @param array $array
* @param SimpleXMLElement $xml
* @param string $child_name
*
* @return SimpleXMLElement $xml
*/
public function arrayToXML($array, SimpleXMLElement $xml, $child_name)
{
foreach ($array as $k => $v) {
if(is_array($v)) {
(is_int($k)) ? $this->arrayToXML($v, $xml->addChild($child_name), $v) : $this->arrayToXML($v, $xml->addChild(strtolower($k)), $child_name);
} else {
(is_int($k)) ? $xml->addChild($child_name, $v) : $xml->addChild(strtolower($k), $v);
}
}
return $xml->asXML();
}
用法:
$this->arrayToXML($array, new SimpleXMLElement('<root/>'), 'child_name_to_replace_numeric_integers');
<?php function array_to_xml(array $arr, SimpleXMLElement $xml) { foreach ($arr as $k => $v) { is_array($v) ? array_to_xml($v, $xml->addChild($k)) : $xml->addChild($k, $v); } return $xml; } $test_array = array ( 'bla' => 'blub', 'foo' => 'bar', 'another_array' => array ( 'stack' => 'overflow', ), ); echo array_to_xml($test_array, new SimpleXMLElement('<root/>'))->asXML();
下面讨论名称空间。在本例中,构造包装器以包含名称空间定义,并将其传递给函数。使用冒号来标识命名空间。
测试数组
$inarray = [];
$inarray['p:apple'] = "red";
$inarray['p:pear'] = "green";
$inarray['p:peach'] = "orange";
$inarray['p1:grocers'] = ['p1:local' => "cheap", 'p1:imported' => "expensive"];
$xml = new SimpleXMLElement( '<p:wrapper xmlns:p="http://namespace.org/api" xmlns:p1="http://namespace.org/api2 /> ');
array_to_xml($xml,$inarray);
function array_to_xml(SimpleXMLElement $object, array $data)
{
$nslist = $object->getDocNamespaces();
foreach ($data as $key => $value)
{
$nspace = null;
$keyparts = explode(":",$key,2);
if ( count($keyparts)==2)
$nspace = $nslist[$keyparts[0]];
if (is_array($value))
{
$key = is_numeric($key) ? "item$key" : $key;
$new_object = $object->addChild($key,null,$nspace);
array_to_xml($new_object, $value);
}
else
{
$key = is_numeric($key) ? "item$key" : $key;
$object->addChild($key, $value,$nspace);
}
}
}
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();