Codeigniter 删除...在哪里...以及

我需要一点帮助。 我如何使用 codeigniter 发送此查询？

Delete FROM friendconnect WHERE who = 5 and whos = 1 OR whos = 5 and who = 1;

我只发现：

$this->db->where('id', $id);
$this->db->delete('mytable'); 

谢谢大家！

$this->db->where('who', 5);
$this->db->where('whos', 1);
$this->db->or_where('whos', 5);
$this->db->where('who', 1);

$this->db->delete('friendconnect');

这也是一种替代方案：

$this->db->where('who', 5)->where('whos', 1)->or_where('whos', 5)->where('who', 1);
$this->db->delete('friendconnect');

这也是：

$this->db->where(array('who'=>5, array('whos'=>1)))->or_where('whos', 5)->where('who', 1);
$this->db->delete('friendconnect');

更多信息：here