支持标前缀
1)查询不等于且有等于
$this->db->get_where('host',array('host'=>'ddd','id !='=>0))->row();
2)2表相交
return $this->db ->select('f.*,count(s.id) as subtotal') ->from('category as f')->join('category s', 'f.id=s.upid', 'left') ->where('f.upid', $upid) ->group_by('f.id') ->order_by('f.sort', 'asc') ->get()->result();
3)多个order_by 排序
return $this->db->select('*') ->from('v_category') ->where('upid',$upid) ->order_by('sort','asc') ->order_by('id','desc') ->get()->result();
return $this->db->get_where('category', array('id' => $id))->row();
5)多条记录
return $this->db->get_where('v_category', array('upid' => $upid))->result();
6)统计个数
$this->db->where('host',$host)->where('id !=',$id)->from('host')->count_all_results();
更多稍后补充,转载请注明来自 default7#zbphp.com,欢迎交流。
codeigniter 操作mysql的PHP代码--更新,布布扣,bubuko.com
原文:http://blog.csdn.net/default7/article/details/37402585