Get array's key recursively and create underscore separated string

Question

Right now i got an array which has some sort of information and i need to create a table from it. e.g.

Student{
      [Address]{
              [StreetAddress         


        

Answer 1

(Working on it, here is the array to save the trouble):

$arr = array
(
    'Student' => array
    (
        'Address' => array
        (
            'StreetAddress' => 'Some Street',
            'StreetName' => 'Some Name',
        ),
        'Marks1' => '100',
        'Marks2' => '50',
    ),
);

---

Here it is, using a modified version of @polygenelubricants code:

function dfs($array, $parent = null)
{
    static $result = array();

    if (is_array($array) * count($array) > 0)
    {
        foreach ($array as $key => $value)
        {
            dfs($value, $parent . '_' . $key);
        }
    }

    else
    {
        $result[] = ltrim($parent, '_');
    }

    return $result;
}

echo '
';
print_r(dfs($arr));
echo '
';

Outputs:

Array
(
    [0] => Student_Address_StreetAddress
    [1] => Student_Address_StreetName
    [2] => Student_Marks1
    [3] => Student_Marks2
)