如何将数组转换为PHP中的SimpleXML对象?
当前回答
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;
}
其他回答
总之……我使用了onokazu的代码(谢谢!),并添加了在XML中重复标记的能力,它还支持属性,希望有人发现它有用!
<?php
function array_to_xml(array $arr, SimpleXMLElement $xml) {
foreach ($arr as $k => $v) {
$attrArr = array();
$kArray = explode(' ',$k);
$tag = array_shift($kArray);
if (count($kArray) > 0) {
foreach($kArray as $attrValue) {
$attrArr[] = explode('=',$attrValue);
}
}
if (is_array($v)) {
if (is_numeric($k)) {
array_to_xml($v, $xml);
} else {
$child = $xml->addChild($tag);
if (isset($attrArr)) {
foreach($attrArr as $attrArrV) {
$child->addAttribute($attrArrV[0],$attrArrV[1]);
}
}
array_to_xml($v, $child);
}
} else {
$child = $xml->addChild($tag, $v);
if (isset($attrArr)) {
foreach($attrArr as $attrArrV) {
$child->addAttribute($attrArrV[0],$attrArrV[1]);
}
}
}
}
return $xml;
}
$test_array = array (
'bla' => 'blub',
'foo' => 'bar',
'another_array' => array (
array('stack' => 'overflow'),
array('stack' => 'overflow'),
array('stack' => 'overflow'),
),
'foo attribute1=value1 attribute2=value2' => 'bar',
);
$xml = array_to_xml($test_array, new SimpleXMLElement('<root/>'))->asXML();
echo "$xml\n";
$dom = new DOMDocument;
$dom->preserveWhiteSpace = FALSE;
$dom->loadXML($xml);
$dom->formatOutput = TRUE;
echo $dom->saveXml();
?>
我想要一个代码,将一个数组内的所有元素,并把它们作为属性,所有数组作为子元素。
对于像这样的东西
array (
'row1' => array ('head_element' =>array("prop1"=>"some value","prop2"=>array("empty"))),
"row2"=> array ("stack"=>"overflow","overflow"=>"overflow")
);
我会得到这样的结果
<?xml version="1.0" encoding="utf-8"?>
<someRoot>
<row1>
<head_element prop1="some value">
<prop2 0="empty"/>
</head_element>
</row1>
<row2 stack="overflow" overflow="stack"/>
</someRoot>
要实现这一点,代码如下,但要非常小心,它是递归的,实际上可能会导致stackoverflow:)
function addElements(&$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。
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);
}
}
}
<?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();
我的答案,拼凑别人的答案。这应该可以纠正无法补偿数字键的错误:
function array_to_xml($array, $root, $element) {
$xml = new SimpleXMLElement("<{$root}/>");
foreach ($array as $value) {
$elem = $xml->addChild($element);
xml_recurse_child($elem, $value);
}
return $xml;
}
function xml_recurse_child(&$node, $child) {
foreach ($child as $key=>$value) {
if(is_array($value)) {
foreach ($value as $k => $v) {
if(is_numeric($k)){
xml_recurse_child($node, array($key => $v));
}
else {
$subnode = $node->addChild($key);
xml_recurse_child($subnode, $value);
}
}
}
else {
$node->addChild($key, $value);
}
}
}
array_to_xml()函数假定数组首先由数字键组成。如果数组有一个初始元素,则可以从array_to_xml()函数中删除foreach()和$elem语句,只传递$xml。