PHP /从Array中提取导航

Question

I have an XML document and i'm using SimpleXMLElement to parse it with PHP like :

<Document>
     <Hello>
         <Name>Jason</Name>
    </Hello>
</Document>

Example to access to the name loading my XML and then i do :

$xml->Document->Hello->Name

I would like to store all this routes in associative array like

$array = [
   "Document->Hello->Name" => "name"
];

The problem is when i loop on this array my field is empty I do this :

foreach($array as $key => $v)
{
  $hereIsempty = $xml->$key
}

Is someone have a solution to get the value i want from my array mapping plz

Answer 1

Storing full route path in one key is a bad idea. if you know in advance the meaning of the path: set the tags name to const value and then use it.

But if you realy need to save path as key in array, you can separate all tags in first sub-array and set needs value as second element of array; something like this:

$needs = [];

$routes = [
    [
        'tags' => ['Document', 'Hello'], 
        'need' => 'Name'
    ]
];

foreach ($routes as $route) {
    tempXml = $xml;

    foreach ($route['tags'] as $tag) {
        $tempXml = $tempXml->{$tag};
    }

    $need[] = (string)$tempXml->{$route['need']};
}