array(0=>array('user_id'=>1113,'user_name'=>'cnbander','user_loginpass'=>'5277d5d86b46c5c7761dc4e08882ac1f','user_nickname'=>'ban你好','user_mobile'=>'13255642019','user_mail'=>'[email protected]','user_state'=>'正常','user_activate'=>'未激活','user_reg_time'=>'2019-04-0618:18:04','user_activate_time'=>'1970-01-0108:00:00','user_deposit'=>1,'user_reg_ip'=>'127.0.0.1','user_last_ip'=>'0.0.0.0','user_invite_code'=>'7V9PN','user_province'=>320000,'user_city'=>320200,'user_id_card'=>'15222219841226103X','user_sex'=>'女','user_full_name'=>'莎士比亞','user_salt'=>977383,))怎么能去掉數組key的前綴，我這是一個用戶列表數據，通過json返回給客戶端，我不想對前端暴露前綴user_,感覺不安全。一下就看出我的表名了。