Cacher is the code snippet organizer for pro developers

$date = ConvertTimeStamp(AddToTimeStamp(array("DD" => "-21" )));
		$salesOb = CSaleProduct::GetBestSellerList(
			'AMOUNT',
			array(),
			array(
				">=DATE_INSERT" => $date,
			),
			false
		);
		
while($product = $salesOb->fetch()) {

}