Takes an array of values from an array (with ability to rename keys and manipulate values)

gistfile1.php

<?php

/**
 * @author Morrison Laju <[email protected]>
 */
class ArrayUtils
{
    /**
     * Returns a new array created from another
     * containing only the keys that we want.
     *  it also allows renaming a key from the original array.
     *
     * @param array $from The array we are taking data from
     * @param array $keys The keys we want from the array
     * @param bool $includeEmpty Should elements with empty values be allowed
     *
     * @return array
     */
    public static function take($from, $keys, $includeEmpty = true)
    {
        if (self::isList($from)) {
            return array_map(function ($item) use ($keys, $includeEmpty) {
                return self::take($item, $keys, $includeEmpty);
            }, $from);
        }

        $retrieved = array();

        array_walk($keys,
            function (&$value, $index, $retrieved) use ($from, $includeEmpty) {
                if (is_int($index) && !($value instanceof \Closure)) $index = $value;
                if (array_key_exists($index, $from) &&
                    ($includeEmpty || ($includeEmpty == false &&
                            !empty($from[$index])))
                ) {
                    if ($value instanceof \Closure) {
                        $retrieved[0][$index] = call_user_func($value, $from[$index]);
                    } else {
                        $retrieved[0][$value] = $from[$index];
                    }
                }
            }, array(&$retrieved));

        return $retrieved;
    }
}

Simple usage here
http://pastebin.com/E0WEKnVs

wow, it cool man love it