Don't directly read the '@attributes' property, that's for internal use. Anyway, attributes() can already be used as an array without needing to "convert" to a real array.

For example:

<?php
$xml = '<xml><test><a a="b" r="x" q="v" /></test><b/></xml>';
$x = new SimpleXMLElement(attr = $x->test[0]->a[0]->attributes();
echo $attr['a']; // "b"

If you want it to be a "true" array, you're gonna have to loop:

$attrArray = array();
$attr = $x->test[0]->a[0]->attributes();

foreach($attr as val){
    $attrArray[(string)$key] = (string)$val;
}

Another option is the SimpleXML extension (I believe it comes standard with most php installs.)

http://php.net/manual/en/book.simplexml.php

The syntax looks something like this for your example

$xml = new SimpleXMLElement($xmlString);
echo $xml->bbb->cccc->dddd['Id'];
echo $xml->bbb->cccc->eeee['name'];
// or...........
foreach ($xml->bbb->cccc as $element) {
  foreach($element as val) {
   echo "{$key}: {$val}";
  }
}

I think you have fundamentally the wrong approach. Rather than trying to create one function that can express all possible contents of an XML document in one array, use the APIs provided by SimpleXML to extract the data you need for your particular task.

Given your example input, a useful output might be an associative array of key-value pairs, like this:

Array (
    [Surname] => Ярош
    [Name] => Анна
    [Middle name] => Григорьевна
    [Position] => Торговый представитель розничных продаж
    [City] => BAIKALSEA Company Иркутск
    [Division] => Отдел продаж
    [Department] => Продажи
    [Email] => [email protected]
    [MobPhone] => 79149274726
    [WorkPhone] => -
    [Manager] => Нет
    [HonoredWorker] => Нет
    [Login] => [email protected]
    [Character] => Пользователь 
)

Which can be achieved with a simple loop over a SimpleXML element:

$sx = simplexml_load_string(parsed_attributes = [];
foreach ( $sx->attribute as $attribute_element ) {
    $parsed_attributes[ (string)$attribute_element['name'] ] = (string)$attribute_element;
}

print_r($parsed_attributes);

If you don't know in this part of the application how you're going to use the data, keep it as a SimpleXMLElement, and give the rest of your code the power of that API. If you want to store it to use later, use ->asXML() and store it back in XML form.

<?php
    include ("htmlparser.php");
    $string = '
<mapi>
    <categoriesList>
        <category id="310">Autres</category>
        <category id="574">Bière</category>
        <category id="495">Biscuits</category>
        <category id="444">Bonbons</category>
        <category id="435">Champagne</category>
        <category id="371">Cidre</category>
        <category id="215">Condiments</category>
        <category id="8">Fruits</category>
        <category id="445">Poissons</category>
        <category id="578">Produits laitiers</category>
        <category id="539">Spiritueux</category>
        <category id="259">Viandes</category>
        <category id="126">Vin</category>
    </categoriesList>
</mapi>
';
 $html = str_get_html($string);
  foreach($html->find('category') as $element){
    $array[] = $element -> innertext ;
  }

  echo '<pre>';
  print_r($array);
?>

You need to download this library: http://simplehtmldom.sourceforge.net/manual.htm#section_dump