original_string: private function getRandomChar(string $interval): string
      {
          $size = \strlen($interval) - 1;
          $int = \random_int(0, $size);
  
          return $interval[$int];
      }
code: private function getRandomChar(string $interval): string
      {
          $size = \strlen($interval) - 1;
          $int = \random_int(0, $size);
  
          return $interval[$int];
      }
code_tokens: private function getRandomChar ( string $ interval ) : string { $ size = \ strlen ( $ interval ) - 1 ; $ int = \ random_int ( 0 , $ size ) ; return $ interval [ $ int ] ; }
docstring: Get random char between.
  
  @param string $interval
  
  @return string
docstring_tokens: Get random char between .