tarsana / functional

 * @param  array $list

 * @return mixed

 */

function findLastIndex() {

    static $findLastIndex = false;

    $findLastIndex = $findLastIndex ?: curry(function($predicate, $list) {

        $keys = array_keys($list);

        $index = count($keys) - 1;

        while ($index >= 0) {

            if ($predicate($list[$keys[$index]]))

                return $keys[$index];

            $index --;

        }

        return null;

    });

    return _apply($findLastIndex, func_get_args());

}

/**

 * Returns the first item satisfying the predicate in

 * @param  array $list

 * @return mixed

 */

function findLast() {

    static $findLast = false;

    $findLast = $findLast ?: curry(function($predicate, $list) {

        $keys = array_keys($list);

        $index = count($keys) - 1;

        while ($index >= 0) {

            if ($predicate($list[$keys[$index]]))

                return $list[$keys[$index]];

            $index --;

        }

        return null;

    });

    return _apply($findLast, func_get_args());

}

/**

 * Returns the index of an item/substring in a list/string.