public function toUnicode()
  {
    $h = ord($this->char{0});

    if($h <= 0x7F)
    {
      return $h;
    }
    else if($h < 0xC2)
    {
      return FALSE;
    }
    else if($h <= 0xDF)
    {
      return ($h & 0x1F) << 6 | (ord($this->char{1}) & 0x3F);
    }
    else if($h <= 0xEF)
    {
      return ($h & 0x0F) << 12 | (ord($this->char{1}) & 0x3F) << 6 | (ord($this->char{2}) & 0x3F);
    }
    else if($h <= 0xF4)
    {
      return ($h & 0x0F) << 18 | (ord($this->char{1}) & 0x3F) << 12 | (ord($this->char{2}) & 0x3F) << 6 | (ord($this->char{3}) & 0x3F);
    }
    else
    {
      return FALSE;
    }
  }
public function toUnicode()
  {
    $h = ord($this->char{0});

    if($h <= 0x7F)
    {
      return $h;
    }
    else if($h < 0xC2)
    {
      return FALSE;
    }
    else if($h <= 0xDF)
    {
      return ($h & 0x1F) << 6 | (ord($this->char{1}) & 0x3F);
    }
    else if($h <= 0xEF)
    {
      return ($h & 0x0F) << 12 | (ord($this->char{1}) & 0x3F) << 6 | (ord($this->char{2}) & 0x3F);
    }
    else if($h <= 0xF4)
    {
      return ($h & 0x0F) << 18 | (ord($this->char{1}) & 0x3F) << 12 | (ord($this->char{2}) & 0x3F) << 6 | (ord($this->char{3}) & 0x3F);
    }
    else
    {
      return FALSE;
    }
  }
public function toUnicode ( ) { $ h = ord ( $ this -> char { 0 } ) ; if ( $ h <= 0x7F ) { return $ h ; } else if ( $ h < 0xC2 ) { return FALSE ; } else if ( $ h <= 0xDF ) { return ( $ h & 0x1F ) << 6 | ( ord ( $ this -> char { 1 } ) & 0x3F ) ; } else if ( $ h <= 0xEF ) { return ( $ h & 0x0F ) << 12 | ( ord ( $ this -> char { 1 } ) & 0x3F ) << 6 | ( ord ( $ this -> char { 2 } ) & 0x3F ) ; } else if ( $ h <= 0xF4 ) { return ( $ h & 0x0F ) << 18 | ( ord ( $ this -> char { 1 } ) & 0x3F ) << 12 | ( ord ( $ this -> char { 2 } ) & 0x3F ) << 6 | ( ord ( $ this -> char { 3 } ) & 0x3F ) ; } else { return FALSE ; } }
Returns the Unicode value of the character.

@return integer
Returns the Unicode value of the character .