SELECT pid			AS pid,
						 p_name			AS title,
						 p_model		AS model,
						 resizepic		AS repic,
						 p_price		AS price,
						 favorite_num 	AS favorite
				 FROM	 productcore
				 WHERE	 channel_id = 1
				 AND 	 isdel = '0'
				 ORDER	 BY p_date DESC, rank DESC
				 LIMIT	 0,8SQLSTATE[42S22]: Column not found: 1054 Unknown column 'favorite_num' in 'field list'