通过SimpleXML对象循环，或转动整个事情到一个数组 [英] Looping through a SimpleXML object, or turning the whole thing into an array
问题描述
我试图找出如何遍历虽然返回的SimpleXML对象。
I'm trying to work out how to iterate though a returned SimpleXML object.
我使用了一个名为泰山AWS 的工具包，它连接到亚马逊网络服务（SimpleDB的，S3，EC2，等）。我专门用SimpleDB的。
I'm using a toolkit called Tarzan AWS, which connects to Amazon Web Services (SimpleDB, S3, EC2, etc). I'm specifically using SimpleDB.
我可以把数据放到亚马逊SimpleDB的服务，我可以拿回来。我只是不知道如何处理返回的SimpleXML的对象。
I can put data into the Amazon SimpleDB service, and I can get it back. I just don't know how to handle the SimpleXML object that is returned.
泰山AWS文件说的：
看的响应来浏览响应的报头和主体。注意，这是一个目的，不是一个数组，并且该主体是SimpleXML对象
Look at the response to navigate through the headers and body of the response. Note that this is an object, not an array, and that the body is a SimpleXML object.
下面是返回的SimpleXML对象的示例：
Here's a sample of the returned SimpleXML object:
[body] => SimpleXMLElement Object
(
[QueryWithAttributesResult] => SimpleXMLElement Object
(
[Item] => Array
(
[0] => SimpleXMLElement Object
(
[Name] => message12413344443260
[Attribute] => Array
(
[0] => SimpleXMLElement Object
(
[Name] => active
[Value] => 1
)
[1] => SimpleXMLElement Object
(
[Name] => user
[Value] => john
)
[2] => SimpleXMLElement Object
(
[Name] => message
[Value] => This is a message.
)
[3] => SimpleXMLElement Object
(
[Name] => time
[Value] => 1241334444
)
[4] => SimpleXMLElement Object
(
[Name] => id
[Value] => 12413344443260
)
[5] => SimpleXMLElement Object
(
[Name] => ip
[Value] => 10.10.10.1
)
)
)
[1] => SimpleXMLElement Object
(
[Name] => message12413346907303
[Attribute] => Array
(
[0] => SimpleXMLElement Object
(
[Name] => active
[Value] => 1
)
[1] => SimpleXMLElement Object
(
[Name] => user
[Value] => fred
)
[2] => SimpleXMLElement Object
(
[Name] => message
[Value] => This is another message
)
[3] => SimpleXMLElement Object
(
[Name] => time
[Value] => 1241334690
)
[4] => SimpleXMLElement Object
(
[Name] => id
[Value] => 12413346907303
)
[5] => SimpleXMLElement Object
(
[Name] => ip
[Value] => 10.10.10.2
)
)
)
)
那么，code，我需要打通各个对象的项目？我想通过他们每个人的循环和处理它像一个返回的MySQL查询。例如，我可以查询SimpleDB的，然后循环尽管SimpleXML的这样我就可以在页面上显示的结果。
So what code do I need to get through each of the object items? I'd like to loop through each of them and handle it like a returned mySQL query. For example, I can query SimpleDB and then loop though the SimpleXML so I can display the results on the page.
另外，你怎么把整个事情到一个数组？
Alternatively, how do you turn the whole shebang into an array?
我是新来的SimpleXML，所以我道歉，如果我的问题不够具体。
I'm new to SimpleXML, so I apologise if my questions aren't specific enough.
推荐答案
您可以使用的SimpleXML 对象的（或它的属性）的foreach 循环。如果你想通过所有的记录这样的循环可用于访问和显示数据：
You can use the SimpleXML object (or its properties) in a foreach loop. If you want to loop through all the 'records' something like this can be used to access and display the data:
//Loop through all the members of the Item array
//(essentially your two database rows).
foreach($SimpleXML->body->QueryWithAttributesResult->Item as $Item){
//Now you can access the 'row' data using $Item in this case
//two elements, a name and an array of key/value pairs
echo $Item->Name;
//Loop through the attribute array to access the 'fields'.
foreach($Item->Attribute as $Attribute){
//Each attribute has two elements, name and value.
echo $Attribute->Name . ": " . $Attribute->Value;
}
}
注意$档案将SimpleXML对象，如为$属性，所以它们需要被引用为对象，而不是阵列。
Note that $Item will be a SimpleXML object, as is $Attribute, so they need to be referenced as objects, not arrays.
而例如code以上是通过在SimpleXML的对象（$ SimpleXML->体 - > QueryWithAttributesResult->项目）的阵列循环，您还可以通过SimpleXML对象（比如循环$ SimpleXML->体 - > QueryWithAttributesResult->项目[0]），这将让你的每个对象的属性。
While the example code above is looping through the arrays in the SimpleXML object ($SimpleXML->body->QueryWithAttributesResult->Item), you can also loop through a SimpleXML object (say $SimpleXML->body->QueryWithAttributesResult->Item[0]), and that would give you each of the object's properties.
SimpleXML对象的每个子元素是XML实体。如果XML实体（标签）不是唯一的，则该元素仅仅是SimpleXML的对象的数组再presenting每个实体。
Each child element of a SimpleXML object is an XML entity. If the XML entity (tag) is not unique, then the element is simply an array of SimpleXML objects representing each entity.
如果你想，这应该创建您的SimpleXML对象中比较常见的行/场阵列（或让你关闭）：
If you want, this should create a more common row/fields array from your SimpleXML object (or get you close):
foreach($SimpleXML->body->QueryWithAttributesResult->Item as $Item){
foreach($Item->Attribute as $Attribute){
$rows[$Item->Name][$Attribute->Name] = $Attribute->Value;
}
}
//Now you have an array that looks like:
$rows['message12413344443260']['active'] = 1;
$rows['message12413344443260']['user'] = 'john';
//etc.
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