我想将下面的 XML 转换为 PHP 数组。关于如何做到这一点的任何建议？
<aaaa Version="1.0">
<bbb>
<cccc>
<dddd Id="id:pass" />
<eeee name="hearaman" age="24" />
</cccc>
</bbb>
</aaaa>
【问题讨论】：
简单！
$xml = simplexml_load_string($xmlstring, "SimpleXMLElement", LIBXML_NOCDATA);
$json = json_encode($xml);
$array = json_decode($json,TRUE);
【讨论】：
TRUE（通常默认为FALSE）将JSON 输入转换为关联数组。
另一个选项是 SimpleXML 扩展（我相信它是大多数 php 安装的标准配置。）
http://php.net/manual/en/book.simplexml.php
你的例子的语法看起来像这样
$xml = new SimpleXMLElement($xmlString);
echo $xml->bbb->cccc->dddd['Id'];
echo $xml->bbb->cccc->eeee['name'];
// or...........
foreach ($xml->bbb->cccc as $element) {
foreach($element as $key => $val) {
echo "{$key}: {$val}";
}
}
【讨论】：
[CDATA[TEXT]]，但它们没有对此进行解析。它将其解析为SimpleXMLElement Object。有什么解决方法吗？
将 XML 字符串 ($buffer) 转换为简化数组，忽略属性并将具有相同名称的子元素分组：
function XML2Array(SimpleXMLElement $parent)
{
$array = array();
foreach ($parent as $name => $element) {
($node = & $array[$name])
&& (1 === count($node) ? $node = array($node) : 1)
&& $node = & $node[];
$node = $element->count() ? XML2Array($element) : trim($element);
}
return $array;
}
$xml = simplexml_load_string($buffer);
$array = XML2Array($xml);
$array = array($xml->getName() => $array);
结果：
Array
(
[aaaa] => Array
(
[bbb] => Array
(
[cccc] => Array
(
[dddd] =>
[eeee] =>
)
)
)
)
如果您还想拥有这些属性，可以通过 SimpleXMLElement 的 JSON 编码/解码获得它们。这通常是最简单快捷的解决方案：
$xml = simplexml_load_string($buffer);
$array = json_decode(json_encode((array) $xml), true);
$array = array($xml->getName() => $array);
结果：
Array
(
[aaaa] => Array
(
[@attributes] => Array
(
[Version] => 1.0
)
[bbb] => Array
(
[cccc] => Array
(
[dddd] => Array
(
[@attributes] => Array
(
[Id] => id:pass
)
)
[eeee] => Array
(
[@attributes] => Array
(
[name] => hearaman
[age] => 24
)
)
)
)
)
)
请注意，所有这些方法都只能在 XML 文档的命名空间中工作。
【讨论】：
&& (is_countable($node) && 1 === count($node) ? $node = array($node) : 1)，但是我在下一行出现错误：[] operator not supported for strings。
$array = json_decode(json_encode((array)simplexml_load_string($xml)),true);
【讨论】：
json_encode和json_decode。
$array 变量中没有文本值，可能是因为 CDATA。要解决它，请使用以下命令加载您的 XML：new SimpleXMLElement($xml, LIBXML_NOCDATA)。
<?xml version="1.0" encoding="UTF-8"?><note a="b"><body c="d">Hello!</body></note> 这样的简单 XML。运行代码，您会看到 c 属性丢失了！如果您不想要任何不好的惊喜github.com/gaarf/XML-string-to-PHP-array/blob/master/…，请在此处查看完整代码，或在下面查看我的答案stackoverflow.com/a/30234924/828366
当遇到只有一个文本节点的子元素时，在接受的答案 drop 属性中使用的方法。例如：
$xml = '<container><element attribute="123">abcd</element></container>';
print_r(json_decode(json_encode(simplexml_load_string($xml, "SimpleXMLElement", LIBXML_NOCDATA)),1));
Array
(
[element] => abcd
)
我的解决方案（我希望我能在此给予表扬，因为我确信我是根据某些东西改编的）：
function XMLtoArray($xml) {
$previous_value = libxml_use_internal_errors(true);
$dom = new DOMDocument('1.0', 'UTF-8');
$dom->preserveWhiteSpace = false;
$dom->loadXml($xml);
libxml_use_internal_errors($previous_value);
if (libxml_get_errors()) {
return [];
}
return DOMtoArray($dom);
}
function DOMtoArray($root) {
$result = array();
if ($root->hasAttributes()) {
$attrs = $root->attributes;
foreach ($attrs as $attr) {
$result['@attributes'][$attr->name] = $attr->value;
}
}
if ($root->hasChildNodes()) {
$children = $root->childNodes;
if ($children->length == 1) {
$child = $children->item(0);
if (in_array($child->nodeType,[XML_TEXT_NODE,XML_CDATA_SECTION_NODE])) {
$result['_value'] = $child->nodeValue;
return count($result) == 1
? $result['_value']
: $result;
}
}
$groups = array();
foreach ($children as $child) {
if (!isset($result[$child->nodeName])) {
$result[$child->nodeName] = DOMtoArray($child);
} else {
if (!isset($groups[$child->nodeName])) {
$result[$child->nodeName] = array($result[$child->nodeName]);
$groups[$child->nodeName] = 1;
}
$result[$child->nodeName][] = DOMtoArray($child);
}
}
}
return $result;
}
$xml = '
<aaaa Version="1.0">
<bbb>
<cccc>
<dddd id="123" />
<eeee name="john" age="24" />
<ffff type="employee">Supervisor</ffff>
</cccc>
</bbb>
</aaaa>
';
print_r(XMLtoArray($xml));
Array
(
[aaaa] => Array
(
[@attributes] => Array
(
[Version] => 1.0
)
[bbb] => Array
(
[cccc] => Array
(
[dddd] => Array
(
[@attributes] => Array
(
[id] => 123
)
)
[eeee] => Array
(
[@attributes] => Array
(
[name] => john
[age] => 24
)
)
[ffff] => Array
(
[@attributes] => Array
(
[type] => employee
)
[_value] => Supervisor
)
)
)
)
)
【讨论】：
见https://github.com/gaarf/XML-string-to-PHP-array/blob/master/xmlstr_to_array.php
<?php
/**
* convert xml string to php array - useful to get a serializable value
*
* @param string $xmlstr
* @return array
*
* @author Adrien aka Gaarf & contributors
* @see http://gaarf.info/2009/08/13/xml-string-to-php-array/
*/
function xmlstr_to_array($xmlstr) {
$doc = new DOMDocument();
$doc->loadXML($xmlstr);
$root = $doc->documentElement;
$output = domnode_to_array($root);
$output['@root'] = $root->tagName;
return $output;
}
function domnode_to_array($node) {
$output = array();
switch ($node->nodeType) {
case XML_CDATA_SECTION_NODE:
case XML_TEXT_NODE:
$output = trim($node->textContent);
break;
case XML_ELEMENT_NODE:
for ($i=0, $m=$node->childNodes->length; $i<$m; $i++) {
$child = $node->childNodes->item($i);
$v = domnode_to_array($child);
if(isset($child->tagName)) {
$t = $child->tagName;
if(!isset($output[$t])) {
$output[$t] = array();
}
$output[$t][] = $v;
}
elseif($v || $v === '0') {
$output = (string) $v;
}
}
if($node->attributes->length && !is_array($output)) { //Has attributes but isn't an array
$output = array('@content'=>$output); //Change output into an array.
}
if(is_array($output)) {
if($node->attributes->length) {
$a = array();
foreach($node->attributes as $attrName => $attrNode) {
$a[$attrName] = (string) $attrNode->value;
}
$output['@attributes'] = $a;
}
foreach ($output as $t => $v) {
if(is_array($v) && count($v)==1 && $t!='@attributes') {
$output[$t] = $v[0];
}
}
}
break;
}
return $output;
}
【讨论】：
很惊讶没有人提到xml_parse_into_struct：
$simple = "<para><note>simple note</note></para>";
$p = xml_parser_create();
xml_parse_into_struct($p, $simple, $vals, $index);
xml_parser_free($p);
echo "Index array\n";
print_r($index);
echo "\nVals array\n";
print_r($vals);
【讨论】：
更多详情请访问https://github.com/sapankumarmohanty/lamp/blob/master/Crate-XML-2-Array
//XML转数组，SOAP XML转数组
function xml2array($contents, $get_attributes = 1, $priority = 'tag')
{
if (!$contents) return array();
if (!function_exists('xml_parser_create')) {
// print "'xml_parser_create()' function not found!";
return array();
}
// Get the XML parser of PHP - PHP must have this module for the parser to work
$parser = xml_parser_create('');
xml_parser_set_option($parser, XML_OPTION_TARGET_ENCODING, "UTF-8"); // http://minutillo.com/steve/weblog/2004/6/17/php-xml-and-character-encodings-a-tale-of-sadness-rage-and-data-loss
xml_parser_set_option($parser, XML_OPTION_CASE_FOLDING, 0);
xml_parser_set_option($parser, XML_OPTION_SKIP_WHITE, 1);
xml_parse_into_struct($parser, trim($contents) , $xml_values);
xml_parser_free($parser);
if (!$xml_values) return; //Hmm...
// Initializations
$xml_array = array();
$parents = array();
$opened_tags = array();
$arr = array();
$current = & $xml_array; //Refference
// Go through the tags.
$repeated_tag_index = array(); //Multiple tags with same name will be turned into an array
foreach($xml_values as $data) {
unset($attributes, $value); //Remove existing values, or there will be trouble
// This command will extract these variables into the foreach scope
// tag(string), type(string), level(int), attributes(array).
extract($data); //We could use the array by itself, but this cooler.
$result = array();
$attributes_data = array();
if (isset($value)) {
if ($priority == 'tag') $result = $value;
else $result['value'] = $value; //Put the value in a assoc array if we are in the 'Attribute' mode
}
// Set the attributes too.
if (isset($attributes) and $get_attributes) {
foreach($attributes as $attr => $val) {
if ( $attr == 'ResStatus' ) {
$current[$attr][] = $val;
}
if ($priority == 'tag') $attributes_data[$attr] = $val;
else $result['attr'][$attr] = $val; //Set all the attributes in a array called 'attr'
}
}
// See tag status and do the needed.
//echo"<br/> Type:".$type;
if ($type == "open") { //The starting of the tag '<tag>'
$parent[$level - 1] = & $current;
if (!is_array($current) or (!in_array($tag, array_keys($current)))) { //Insert New tag
$current[$tag] = $result;
if ($attributes_data) $current[$tag . '_attr'] = $attributes_data;
//print_r($current[$tag . '_attr']);
$repeated_tag_index[$tag . '_' . $level] = 1;
$current = & $current[$tag];
}
else { //There was another element with the same tag name
if (isset($current[$tag][0])) { //If there is a 0th element it is already an array
$current[$tag][$repeated_tag_index[$tag . '_' . $level]] = $result;
$repeated_tag_index[$tag . '_' . $level]++;
}
else { //This section will make the value an array if multiple tags with the same name appear together
$current[$tag] = array(
$current[$tag],
$result
); //This will combine the existing item and the new item together to make an array
$repeated_tag_index[$tag . '_' . $level] = 2;
if (isset($current[$tag . '_attr'])) { //The attribute of the last(0th) tag must be moved as well
$current[$tag]['0_attr'] = $current[$tag . '_attr'];
unset($current[$tag . '_attr']);
}
}
$last_item_index = $repeated_tag_index[$tag . '_' . $level] - 1;
$current = & $current[$tag][$last_item_index];
}
}
elseif ($type == "complete") { //Tags that ends in 1 line '<tag />'
// See if the key is already taken.
if (!isset($current[$tag])) { //New Key
$current[$tag] = $result;
$repeated_tag_index[$tag . '_' . $level] = 1;
if ($priority == 'tag' and $attributes_data) $current[$tag . '_attr'] = $attributes_data;
}
else { //If taken, put all things inside a list(array)
if (isset($current[$tag][0]) and is_array($current[$tag])) { //If it is already an array...
// ...push the new element into that array.
$current[$tag][$repeated_tag_index[$tag . '_' . $level]] = $result;
if ($priority == 'tag' and $get_attributes and $attributes_data) {
$current[$tag][$repeated_tag_index[$tag . '_' . $level] . '_attr'] = $attributes_data;
}
$repeated_tag_index[$tag . '_' . $level]++;
}
else { //If it is not an array...
$current[$tag] = array(
$current[$tag],
$result
); //...Make it an array using using the existing value and the new value
$repeated_tag_index[$tag . '_' . $level] = 1;
if ($priority == 'tag' and $get_attributes) {
if (isset($current[$tag . '_attr'])) { //The attribute of the last(0th) tag must be moved as well
$current[$tag]['0_attr'] = $current[$tag . '_attr'];
unset($current[$tag . '_attr']);
}
if ($attributes_data) {
$current[$tag][$repeated_tag_index[$tag . '_' . $level] . '_attr'] = $attributes_data;
}
}
$repeated_tag_index[$tag . '_' . $level]++; //0 and 1 index is already taken
}
}
}
elseif ($type == 'close') { //End of tag '</tag>'
$current = & $parent[$level - 1];
}
}
return ($xml_array);
}
// Let's call the this above function xml2array
xml2array($xmlContent, $get_attributes = 3, $priority = 'tag'); // it will work 100% if not ping me @skype: sapan.mohannty
// Enjoy coding
【讨论】：
两行代码 (https://www.php.net/manual/en/book.simplexml.php#113485)
$xml = new SimpleXMLElement("<your><xml><string>ok</string></xml></your>");
$array = (array)$xml;
【讨论】：
我喜欢这个问题，一些答案对我有帮助，但我需要将 xml 转换为一个支配数组，所以我会发布我的解决方案，也许以后有人需要它：
<?php
$xml = json_decode(json_encode((array)simplexml_load_string($xml)),1);
$finalItem = getChild($xml);
var_dump($finalItem);
function getChild($xml, $finalItem = []){
foreach($xml as $key=>$value){
if(!is_array($value)){
$finalItem[$key] = $value;
}else{
$finalItem = getChild($value, $finalItem);
}
}
return $finalItem;
}
?>
【讨论】：