Fatal error: Uncaught PDOException: SQLSTATE[42000]: Syntax error or access violation: 1064 You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '-20' at line 5 in /www/wwwroot/ybpifa.cn/classes/Product.php:53 Stack trace: #0 /www/wwwroot/ybpifa.cn/classes/Product.php(53): PDOStatement->execute() #1 /www/wwwroot/ybpifa.cn/index.php(12): Product->getList() #2 {main} thrown in /www/wwwroot/ybpifa.cn/classes/Product.php on line 53