[NumLock]

Код:

var
  StringStream: TStringStream;
begin
  StringStream:=TStringStream.Create('new line cinema');
  try
    IdHTTP1.Request.ContentType:='application/x-www-form-urlencoded';
    IdHTTP1.Post('http://server/add.php', StringStream);
  finally
    StringStream.Free;
  end;
end;