1062 Duplicate entry '0' for key 'PRIMARY'
$sql = "CREATE TABLE IF NOT EXISTS `$table_name`(
`id` int not null PRIMARY KEY AUTO_INCREMENT,
`phone_number` varchar(255) NOT NULL
) ENGINE=myisam CHARSET=utf8 AUTO_INCREMENT = 0";
Db::execute($sql);一直报错,但切到数据库看,发现加进去了