统计某表中某个字段的和
开源系统 更新 2017-07-13 11:57:01
周敏
周敏
总额：
{php
$sum = $this->ci->db->select_sum('juanzengjine')->get('dr_1_form_jzjz');
var_dump($sum);
}
想统计某个表的一个字段的总和结果并输出，poscms应该怎们写才行，大致如上，上面代码是不行得。
{php
$sum = $this->ci->db->select_sum('juanzengjine')->get('dr_1_form_jzjz')->row_array();
var_dump($sum);
}
{php
$sum = $this->ci->db->select_sum('juanzengjine')->get('dr_1_form_jzjz')->row_array();
var_dump($sum);
}
{php
$sum = $this->ci->db->select_sum('juanzengjine')->get('dr_1_form_jzjz')->row_array();
var_dump($sum);
}
{php
$sum = $ci->db->select_sum('juanzengjine')->get('dr_1_form_jzjz')->row_array();
var_dump($sum);
}