根據多個id批量更新指定字段值
$map[] = ['id','in', input('post.id/a')];
$result = db('picture')->where($map)->update(['posid' => 1]);
相當於sql語句:
UPDATE `yj_picture` SET `posid` = 1 WHERE `id` IN (1,2,3)
使用表達式like進行模糊查詢
$map[] = array('title','like','%'.$keywords.'%');
db('picture')->where($map)->find();
持續更新.......懶得整理......