php - mysql -codeigniter 计算某个数字出现的次数

Question

如何查找open_id_fk在此表中出现的次数。我在我的模型中使用以下代码。

 $this->db->select('open_id_fk, COUNT(open_id_fk) as total');
 $this->db->group_by('open_id_fk'); 
 $this->db->order_by('total', 'desc'); 
 $query = $this->db->get('voting_ip', 10);
 return $query;

Expected Output:

116 - 2 occurances 118 - 1 occurances 119 - 1 occurances

Acutual Output recieved:

116- 6 occurances 118- 3 occurances 119- 2 occurances

Answer 1

只需将查询中的 COUNT(open_id_fk) 更改为 COUNT(*)

 $this->db->select('open_id_fk, COUNT(*) as total');
 $this->db->group_by('open_id_fk'); 
 $this->db->order_by('total', 'desc'); 
 $query = $this->db->get('voting_ip', 10);