642      *

   642      *

   643      * @internal You should not use this directly from another application

   643      * @internal You should not use this directly from another application

   644      *

   644      *

   645      * @param string $str

   645      * @param string $str

   646      * @return SplFixedArray

   646      * @return SplFixedArray

   647      */

   648      */

   648     public static function stringToSplFixedArray($str = '')

   649     public static function stringToSplFixedArray($str = '')

   649     {

   650     {

   650         $values = unpack('C*', $str);

   651         $values = unpack('C*', $str);

   651         return SplFixedArray::fromArray(array_values($values));

   652         return SplFixedArray::fromArray(array_values($values));