Description:
------------
I think there is a bug with sprintf() function when I use it with more than one % to format variable output.

Example:

If I use two %s %s it crashes, but if I use only one %s or static values the sql query is valid and no warning errors happen. I think this is really strange, and I don't think I've mistake my php code, I code for some years..

Reproduce code:
---------------
class bdsql
{
function query($sql="",$vars="")
	{
		$sql=sprintf($sql, $vars);
		$result=@mysql_query($sql);
		
		return $result;
	}
}

class kwww extends bdsql
{
	function load_data($cat="",$scat="",$min=0,$max=10)
	{
		$result=$this->query("SELECT * FROM sites WHERE cat='%s' AND scat='%s' LIMIT %d,%d;","addslashes(htmlentities($cat)), addslashes(htmlentities($scat)), $min, $max");
	}
}

How to use (index.php):
$ret2=$kwww->load_data("computadores","internet",0,5);

Expected result:
----------------
Execute the SQL query with no warning errors...

Actual result:
--------------
Warning: sprintf(): Too few arguments in c:\program files\apache\htdocs\kwww\kwww.php on line 38