php - 实现if else循环或else if and can I write function inside a loop的正确方法

Question

function toltalRetailerComm($userId) {
    //print_r ($shoppeId);
    $sql = "SELECT shoppe_id FROM atm_super_shoppe WHERE user_id='$userId'";
    $query = $this->db->query($sql);
    if ($query->num_rows() > 0) {
        $result = $query->row();
        $shoppeId = $result->shoppe_id;

        $sql = "SELECT COALESCE(sum(commission),0) as commission FROM atm_shoppe_commission WHERE shoppe_id ='$shoppeId'";
        $query = $this->db->query($sql);
        print_r($shoppeId);
        if ($query->num_rows > 0) {
            $result = $query->row();
            $commission = $result->commission;
            return $commission;
        } else {

Blockquote block2

            $sql = "SELECT shoppe_id FROM atm_store WHERE user_id='$userId'";
            $query = $this->db->query($sql);
            if ($query->num_rows() > 0) {
                $result = $query->row();
                $storeId = $result->shoppe_id;
                $sql = "SELECT COALESCE(sum(commission),0) as commission FROM atm_store_commission WHERE shoppe_id ='$storeId'";
                $query = $this->db->query($sql);
                print_r($storeId);
                if ($query->num_rows > 0) {
                    $result = $query->row();
                    $commission = $result->commission;
                    return $commission;
                }
            }
        }
    }
}

我是 PHP 新手，谁能告诉我使用 if/else 的正确方法吗？或 elseif在上面显示的代码中？它无法进入第二个街区。另外，我可以在 if/else 中写一个函数吗？堵塞？

Answer 1

你在寻找这样的东西:

function toltalRetailerComm($userId) {
    //print_r ($shoppeId);
    $sql = "SELECT shoppe_id FROM atm_super_shoppe WHERE user_id='$userId'";
    $shoppe_query = $this->db->query($sql);

    $sql = "SELECT shoppe_id FROM atm_store WHERE user_id='$userId'";
    $store_query = $this->db->query($sql);

    if ($shoppe_query->num_rows() > 0) {
        $result = $shoppe_query->row();
        $shoppeId = $result->shoppe_id;

        $sql = "SELECT COALESCE(sum(commission),0) as commission FROM atm_shoppe_commission WHERE shoppe_id ='$shoppeId'";
        $query = $this->db->query($sql);
        print_r($shoppeId);
        if ($query->num_rows > 0) {
            $result = $query->row();
            $commission = $result->commission;
            return $commission;
        }
    } else if ($store_query->num_rows() > 0) {
                $result = $store_query->row();
                $storeId = $result->shoppe_id;
                $sql = "SELECT COALESCE(sum(commission),0) as commission FROM atm_store_commission WHERE shoppe_id ='$storeId'";
                $query = $this->db->query($sql);
                print_r($storeId);
                if ($query->num_rows > 0) {
                    $result = $query->row();
                    $commission = $result->commission;
                    return $commission;
                }
            }
        }