每两个值组之间要用逗号分隔
VALUES
('','$type_id','$user_id','$title','$content','$imgname_a[0]','date(Y-m-d)','$clicktimes','$is_show'),
('','$type_id','$user_id','$title','$content','$imgname_a[1]','date(Y-m-d)','$clicktimes','$is_show'),
('','$type_id','$user_id','$title','$content','$imgname_a[2]','date(Y-m-d)','$clicktimes','$is_show')
简单例子看下你就明白了
insert into news (type_id,userid) values ('5','8'),('6','10'),('11','55');
id如果是主键的话,插入的时候可以不用写