original_string: public static function isUpper($string, $charset)
      {
          return ((self::upper($string, true, $charset) === $string) &&
                  self::isAlpha($string, $charset));
      }
code: public static function isUpper($string, $charset)
      {
          return ((self::upper($string, true, $charset) === $string) &&
                  self::isAlpha($string, $charset));
      }
code_tokens: public static function isUpper ( $ string , $ charset ) { return ( ( self :: upper ( $ string , true , $ charset ) === $ string ) && self :: isAlpha ( $ string , $ charset ) ) ; }
docstring: Returns true if every character in the parameter is an uppercase letter
  in the current locale.
  
  @param string $string   The string to test.
  @param string $charset  The charset to use when testing the string.
  
  @return boolean  True if the parameter was uppercase.
docstring_tokens: Returns true if every character in the parameter is an uppercase letter in the current locale .