任何人都可以帮助将XML文档中的数据转换为关联数组吗?我遇到了问题,因为XML结构是一种3D结构,并且数组更像是2D结构(请原谅我缺乏正确的术语)。 XML元素有属性,子元素和子元素(但我从来不知道它们的名字),所以我想我会尝试使数组中的键成为每个子/属性名称的串联,并且值等于,嗯,价值。麻烦的是我需要将属性名称和值作为连接数组键的一部分,以使其唯一...
例如:
<Computer id="1">
<OS>
<Name>Linux</Name>
<Age>Older than me</Age>
</OS>
</Computer>
<Computer id="2">
<OS>
<Name>Windows</Name>
<Age>Not so much</Age>
</OS>
</Computer>
理想情况下应该给出:
[Computer-id-1-OS-Name] = 'Linux'
[Computer-id-1-OS-Age] = 'Older than me'
[Computer-id-2-OS-Name] = 'Windows'
[Computer-id-2-OS-Age] = 'Not so much'
但我得到了这个结果:
[Computer-id] = '1'
[Computer-OS-Name] = 'Linux'
[Computer-OS-Age] = 'Older than me'
[Computer-id] = '2'
[Computer-OS-Name] = 'Windows'
[Computer-OS-Age] = 'Not so much'
因此[Computer-id]键不是唯一的。我正在使用递归函数来读取值,但我无法弄清楚如何将属性名称和属性值转换为从属键的名称...(顺便说一句,有一个很好的理由这样做看似不合逻辑的任务!) 任何帮助将不胜感激......
这是在将XML数据读入多维数组后“展平”XML函数的函数。我不确定我会以正确的方式做到这一点!
function flattenArray ($array, $baseName = NULL)
{
reset($array);
while (list ($key, $value) = each($array)) {
$outKey = $key . "-";
if (is_array($value)) {
flattenArray($value, $baseName . $outKey);
} else {
$finalKey = $baseName . rtrim($outKey, '-');
$finalValue = $value;
echo "$finalKey = $finalValue\n";
}
}
}
答案 0 :(得分:42)
这对我很有用,而且很简单。
$ob = simplexml_load_file('test.xml');
$json = json_encode($ob);
$array = json_decode($json, true);
答案 1 :(得分:5)
一个例子可能是:
$dom = new DOMDocument;
$dom->loadXML(
'<root>
<Computer id="1">
<OS>
<Name>Linux</Name>
<Age>Older than me</Age>
</OS>
</Computer>
<Computer id="2">
<OS>
<Name>Windows</Name>
<Age>Not so much</Age>
</OS>
</Computer>
</root>'
);
$xpath = new DOMXPath($dom);
$result = array();
foreach ($xpath->query('//*[count(*) = 0]') as $node) {
$path = array();
$val = $node->nodeValue;
do {
if ($node->hasAttributes()) {
foreach ($node->attributes as $attribute) {
$path[] = sprintf('%s[%s]', $attribute->nodeName, $attribute->nodeValue);
}
}
$path[] = $node->nodeName;
}
while ($node = $node->parentNode);
$result[implode('/', array_reverse($path))] = $val;
}
print_r($result);
输出:
Array
(
[#document/root/Computer/id[1]/OS/Name] => Linux
[#document/root/Computer/id[1]/OS/Age] => Older than me
[#document/root/Computer/id[2]/OS/Name] => Windows
[#document/root/Computer/id[2]/OS/Age] => Not so much
)
这不完全是你想要的,但它是一个开始,可以很容易地调整,以给出不同的结果。
答案 2 :(得分:2)
将xml读入DOM对象,循环遍历,将结果保存到数组中。就这么简单。
答案 3 :(得分:2)
这是我生成相关数组的函数,派生自
Recursive cast from SimpleXMLObject to Array
function xml2assoc($obj, &$arr) {
$children = $obj->children();
foreach ( $children as $elementName => $node ) {
if (!isset($arr[$elementName])) {
$arr[$elementName] = array();
}
$temp = array();
$attributes = $node->attributes();
foreach ( $attributes as $attributeName => $attributeValue ) {
$attribName = strtolower(trim((string) $attributeName));
$attribVal = trim((string) $attributeValue);
$temp[$attribName] = $attribVal;
}
$text = (string) $node;
$text = trim($text);
if (strlen($text) > 0) {
$temp ['text='] = $text;
}
$arr[$elementName][] = $temp;
$nextIdx = count($arr[$elementName]);
xml2assoc($node, $arr[$elementName][$nextIdx - 1]);
}
return;
}
$xml = '<xml>
<ToUserName><![CDATA[toUser]]></ToUserName>
<FromUserName><![CDATA[fromUser]]></FromUserName>
<CreateTime>12345678</CreateTime>
<MsgType><![CDATA[news]]></MsgType>
<ArticleCount>2</ArticleCount>
<Articles>
<item>
<Title><![CDATA[title1]]></Title>
<Description><![CDATA[description1]]></Description>
<PicUrl><![CDATA[picurl]]></PicUrl>
<Url><![CDATA[url]]></Url>
</item>
<item>
<Title><![CDATA[title]]></Title>
<Description><![CDATA[description]]></Description>
<PicUrl><![CDATA[picurl]]></PicUrl>
<Url><![CDATA[url]]></Url>
</item>
</Articles>
</xml> ';
$dom = new SimpleXMLElement($xml);
$arr = array();
xml2assoc($dom, $arr);
print_r($arr);
生成的数组:
Array
(
[ToUserName] => Array
(
[0] => Array
(
[text=] => toUser
)
)
[FromUserName] => Array
(
[0] => Array
(
[text=] => fromUser
)
)
[CreateTime] => Array
(
[0] => Array
(
[text=] => 12345678
)
)
[MsgType] => Array
(
[0] => Array
(
[text=] => news
)
)
[ArticleCount] => Array
(
[0] => Array
(
[text=] => 2
)
)
[Articles] => Array
(
[0] => Array
(
[item] => Array
(
[0] => Array
(
[Title] => Array
(
[0] => Array
(
[text=] => title1
)
)
[Description] => Array
(
[0] => Array
(
[text=] => description1
)
)
[PicUrl] => Array
(
[0] => Array
(
[text=] => picurl
)
)
[Url] => Array
(
[0] => Array
(
[text=] => url
)
)
)
[1] => Array
(
[Title] => Array
(
[0] => Array
(
[text=] => title
)
)
[Description] => Array
(
[0] => Array
(
[text=] => description
)
)
[PicUrl] => Array
(
[0] => Array
(
[text=] => picurl
)
)
[Url] => Array
(
[0] => Array
(
[text=] => url
)
)
)
)
)
)
)
答案 4 :(得分:0)
简单数组可能是2d,但多维数组可以很容易地复制像xml这样的层次结构。
Google'关联多维数组php'以获取更多信息。
然而,正如已经说过的那样,PHP有一个内置的xml解析器,所以不管怎样都不需要在数组中重新创建xml,更不用说将它展平为一个简单的数组了。
在PHP中,您的数组结构应该类似于:
$computers["computers"]["computer-1"]["OS"]["Name"] = "Linux";
$computers["computers"]["computer-1"]["OS"]["Age"] = "Older Than Me";
$computers["computers"]["computer-2"]["OS"]["Name"] = "Windows";
$computers["computers"]["computer-2"]["OS"]["Age"] = "Not so much";
等...
答案 5 :(得分:0)
我修改了user655000的答案,使其更接近json_decode(json_encode($ dom))格式化/返回数据的方式。我还将初始数组参数设为可选,因为无论如何它都将为空。
由于在PHP的编码函数中似乎存在错误,因此我无法使用encode(encode)方法,这导致在某些示例数据上,decode()返回null。我尝试使用编码器功能的安全版本,但内存不足。
行为上有细微的差别。如果存在nodeText,则decode(encode)方法将丢弃任何属性(可能也包括子级)。我的方法没有。
function readxml($xmlfile, $recursive = false){
$ob = simplexml_load_file($xmlfile);
//primary method
$json = json_encode($ob);
$array = json_decode($json, true);
if(is_null($array)){//backup method
$array = xml2assoc($ob);
}
return $array;
}
function xml2assoc($obj, &$arr = null) {
$children = $obj->children();//->count();
$nodes = [];
foreach ( $children as $elementName => $node ) {
if(!isset($nodes[$elementName])){
$nodes[$elementName] = 0;
}
$nodes[$elementName]++;
}
$indexes = [];
if($arr === null){
$arr = [];
}
foreach ( $children as $elementName => $node ) {
$temp = array();
$grandchildren = $node->children()->count();
//attributes
$attributes = $node->attributes();
foreach ( $attributes as $attributeName => $attributeValue ) {
$attribName = trim((string) $attributeName);
$attribVal = trim((string) $attributeValue);
$temp["@attributes"][$attribName] = $attribVal;
}
//text
$text = (string) $node;
$text = trim($text);
if (strlen($text) > 0) {
if(count($temp) == 0 && $grandchildren == 0){
$temp = $text;//discard the children/attribute data since there aren't any
} else {
$temp["NodeText"] = $text;//retain the children/attributes
}
}
//grandchildren
if($temp || is_string($temp) || $grandchildren > 0 ){
if( $nodes[$elementName] == 1 ){//only one of it's kind
$arr[$elementName] = $temp;
xml2assoc($node, $arr[$elementName]);
} else {//has multiple nodes of the same kind
if(isset($indexes[$elementName])){
$indexes[$elementName]++;
} else {
$indexes[$elementName] = 0;
}
$index = $indexes[$elementName];
$arr[$elementName][$index] = $temp;
xml2assoc($node, $arr[$elementName][$index]);
}
}
}
return $arr;
}