[Solved] Array PHP. How to get deep of element in array

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You can use the following recursive function to get the depth where the uuid value is found. This version returns value 0 if the uuid value is not found at all. 

function searchDepth($uid, $array, $depth = 0)
{
    $depth++;

    foreach ($array as $element)
    {
        if (isset($element['uid']) && $element['uid'] == $uid)
        {
            return $depth;
        }
        else if (isset($element['introducer_users']))
        {
            $result = searchDepth($uid, $element['introducer_users'], $depth);

            if ($result != 0)
            {
                return $result;
            }
        }
    }

    return 0;
}

And to invoke the function with the search uuid and the array

$depth = searchDepth(10, $mang);

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solved Array PHP. How to get deep of element in array