Question

我有下表

|id|user_type|
|1|Customers|
|2|Suppliers|
|3|Customers|
|4|Suppliers|
|5|Suppliers|
|6|Employees|

我想要计算总客户，供应商，员工

客户（2）

供应商（3）

员工（1）

这是我的HTML

       <a href="#" class="customers list-group-item">
            <span class="badge badge-info">
                 2
            </span>
            Customers
       </a>
        <a href="#" class="employees list-group-item">
            <span class="badge badge-danger">
                3               
           </span>
            Employees           
       </a>
        <a href="#" class="suppliers list-group-item">
            <span class="badge badge-success">
                1               
              </span>
            Suppliers           
       </a>

我的查询代码如下所示

     <?php
                 $this->load->model("User_model");
                 $query = $this->db->query('SELECT user_type, COUNT(Customers) AS total FROM `users` GROUP BY user_type');

       if ($query->num_rows() > 0)
    foreach ($query->result() as $row) 
        $data['users'] = array(
            'total' => $row->total,
        );

echo $data['users'];

此代码无效。谢谢你的时间。

Answer 1

在$data['users']的每次迭代中，您的foreach变量都会被覆盖。您需要做的是将新项目添加到$data['users']。使用[]：

添加到数组

foreach ($query->result() as $row) {
    $data['users'][] = array(
        'type_name' => $row->user_type,
        'total' => $row->total,
    );
}

// `echo` will no work with `arrays`, use `print_r` instead
print_r($data['users']);

根据codeigniter中的类型计算并显示结果

1 个答案: