Compare multidimensional arrays in PHP

Question

How can I compare multidimensional arrays in php? Is there a simple way?

Answer 1

$difference = array();
foreach($array1 as $key => $value)
{
    if(is_array($value))
    {
        if(!isset($array2[$key]))
        {
            $difference[$key] = $value;
        }
        elseif(!is_array($array2[$key]))
        {
            $difference[$key] = $value;
        }
        else
        {
            $new_diff = array_diff($value, $array2[$key]);
            if($new_diff != FALSE)
            {
                $difference[$key] = $new_diff;
            }
        }
    }
    elseif(!isset($array2[$key]) || $array2[$key] != $value)
    {
        $difference[$key] = $value;
    }
}