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已解決 統(tǒng)計某表中某個字段的和
7 0
總額：
{php
$sum = $this->ci->db->select_sum('juanzengjine')->get('dr_1_form_jzjz');
var_dump($sum);
}
想統(tǒng)計某個表的一個字段的總和結(jié)果并輸出，poscms應(yīng)該怎們寫才行，大致如上，上面代碼是不行得。
{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);
}
都對了一般，輸出部分沒對，咋辦了
{php
$sum = $ci->db->select_sum('juanzengjine')->get('dr_1_form_jzjz')->row_array();
var_dump($sum);
}
return出來
{php
$sum = $this->ci->db->select_sum('juanzengjine')->get('dr_1_form_jzjz')->row_array();
echo $sum['juanzengjine']; //這里這么寫才是正確的。
})