deployphp / deployer

        $parts = $this->explodeKey($key);

        $scope = &$this->array;

        $count = count($parts) - 1;

        for ($i = 0; $i < $count; $i++) {

            if (!isset($scope[$parts[$i]])) {

                return null;

            }

            $scope = &$scope[$parts[$i]];

        }

        return isset($scope[$parts[$i]]) ? $scope[$parts[$i]] : null;

    }

        $parts = $this->explodeKey($key);

        $scope = &$this->array;

        $count = count($parts) - 1;

        for ($i = 0; $i < $count; $i++) {

            if (!isset($scope[$parts[$i]])) {

                return;

            }

            $scope = &$scope[$parts[$i]];

        }

        unset($scope[$parts[$i]]);

    }

}