php - 在php中使用超过2个组合参数的内连接sql查询显示记录

Question

我是 PHP 和 SQL 新手；我正在编写一个 SQL 查询来显示具有以下逻辑的记录:

1. sql 表中有 9 个单元格。我想使用 3 个参数的组合来搜索记录。即两个日期之间的搜索、位置搜索和属性类别类型搜索。

2. 搜索条件如下所示:

Date From : _________(date picker) - Date Till:______________(date picker)

Sales Agent : Dropdown ( dehi, mumbai,.....,)

Mobile : __________ (text)

所需的结果组合:

a.所有 3 个组合均为 True -(用户填写日期、销售代理、手机。)

b.任何一个组合都是 True。 (用户只需填写一个参数之一。)

c.只有 2 个组合为 True。 (用户填写2个参数组合，即日期和手机(或)手机和销售代理(或)销售代理和日期)

问题:我无法只进行一种组合。

这是我的 SQL 查询和页面语法:

if(isset($_POST["submit"]))
{
    $date11=$_POST["date1"];
    $date22=$_POST["date2"];
    $salesagent1=$_POST["salesagent"];
    $mobile1=$_POST["mobile"];

    $result = "select 
                 ordertable.order_date, 
                 ordertable.order_id,
                 customer.cust_name, 
                 customer.cust_mobile,
                 customer.cust_email,
                 customer.cust_city,
                 ordertable.quantity, 
                 ordertable.total,
                 orderstatus.order_sta,
                 salesagent.name
               from customer inner join ordertable 
                 on customer.custid=ordertable.cust_id inner join salesagent 
                 on salesagent.said=ordertable.sales_id inner join orderstatus 
                 on orderstatus.id= (select order_statusid from orderhistory where order_id1= ordertable.order_id  order by date_added desc limit 1)                 
               where (ordertable.order_date between '$date11' and '$date22') or (customer.cust_mobile='$mobile1') or (ordertable.sales_id='$salesagent1') 
               order by ordertable.order_id desc";

    $records=mysqli_query($CON,$result);

Answer 1

当每个参数为空时，将null或您选择执行的任何操作设置为:

$result = "select 
         ordertable.order_date, 
         ordertable.order_id,
         customer.cust_name, 
         customer.cust_mobile,
         customer.cust_email,
         customer.cust_city,
         ordertable.quantity, 
         ordertable.total,
         orderstatus.order_sta,
         salesagent.name
         from customer inner join ordertable 
         on customer.custid=ordertable.cust_id inner join salesagent 
         on salesagent.said=ordertable.sales_id inner join orderstatus 
         on orderstatus.id= (select order_statusid from orderhistory where order_id1= ordertable.order_id  order by date_added desc limit 1) 

        where ('$date11' IS NULL OR '$date22' IS NULL OR ordertable.order_date between '$date11' and '$date22') AND ('$mobile1' IS NULL OR customer.cust_mobile='$mobile1') AND ('$salesagent1' IS NULL OR ordertable.sales_id='$salesagent1') 
         order by ordertable.order_id desc";