PHP array magic trick and manipulations

  1. manipulating multidimensional array using array_map

  2. /**
    * Ilterate multidimensional array simplicity
    * @desc modify and manipulate or populate multidimensional array with simple tricks
    * @param array $arr
    * @param function $callback
    * @return Array
    **/
    function Map($arr, $callback)
    {
    if (!is_callable($callback)) {
    throw new Exception("Callback must be function", 1);
    }

    return array_map(function ($key, $val) use ($callback) {
    return call_user_func($callback, $key, $val);
    }, array_keys($arr), $arr);
    }