Php 使用日期范围获取数据的MySQL查询

此查询在MySql workbench中给出了正确的结果-

SELECT tbl_visit_info.visitor_id,tbl_visit_info.retailer_id,tbl_retailer.retailer_shop_name,
  SUM( IF( tbl_visit_info.activity_type = 1 ,1,0)) AS feedback,
SUM( IF( tbl_visit_info.activity_type = 2 ,1,0)) AS promise_order,
SUM( IF( tbl_visit_info.activity_type = 3 ,1,0)) AS stock,
SUM( IF( tbl_visit_info.activity_type = 6 ,1,0)) AS payment,
tbl_visit_info.date as visit_date
FROM tbl_visit_info,tbl_retailer 
where tbl_visit_info.retailer_id=tbl_retailer.retailer_id 
and tbl_visit_info.visitor_id=80
group by visitor_id,retailer_id 
having date_format(tbl_visit_info.date, '%Y-%m-%d') BETWEEN '2018-07-01' AND '2018-09-02';

但是，当我想传递变量来代替80和date range作为变量时，它不会给出任何结果。疑问是-

SELECT tbl_visit_info.visitor_id,tbl_visit_info.retailer_id,tbl_retailer.retailer_shop_name,
  SUM( IF( tbl_visit_info.activity_type = 1 ,1,0)) AS feedback,
  SUM( IF( tbl_visit_info.activity_type = 2 ,1,0)) AS promise_order,
  SUM( IF( tbl_visit_info.activity_type = 3 ,1,0)) AS stock,
  SUM( IF( tbl_visit_info.activity_type = 6 ,1,0)) AS payment
  FROM tbl_visit_info,tbl_retailer
  where tbl_visit_info.retailer_id=tbl_retailer.retailer_id
  and tbl_visit_info.visitor_id='".$_GET["sr_id"]."'
  group by visitor_id,retailer_id having date_format(date, '%Y-%m-%d') BETWEEN 
  '".$_GET["start_date"]."' AND '".$_GET["end_date"]."'"

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当我用PHP编写代码时，此查询没有给出任何结果。

您应该在where子句中使用日期过滤器，而不是使用having：

SELECT tbl_visit_info.visitor_id,tbl_visit_info.retailer_id,tbl_retailer.retailer_shop_name,
  SUM( IF( tbl_visit_info.activity_type = 1 ,1,0)) AS feedback,
  SUM( IF( tbl_visit_info.activity_type = 2 ,1,0)) AS promise_order,
  SUM( IF( tbl_visit_info.activity_type = 3 ,1,0)) AS stock,
  SUM( IF( tbl_visit_info.activity_type = 6 ,1,0)) AS payment
  FROM tbl_visit_info,tbl_retailer
  where tbl_visit_info.retailer_id=tbl_retailer.retailer_id
  and tbl_visit_info.visitor_id='".$_GET["sr_id"]."' 
  and date_format(date, '%Y-%m-%d') BETWEEN 
  '".$_GET["start_date"]."' AND '".$_GET["end_date"]."'"
  group by visitor_id,retailer_id

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$\u-GET[“start\u-date”]

和

$\u-GET[“end\u-date”]

inca的格式是什么？请告诉我们您的$\u-GET[“start\u-date”]和$\u-GET[“sr\u-id”]值和$\u-GET[“sr\u-id”]值？请不要通过将字符串连接在一起创建SQL查询。您应该始终使用参数化查询，否则SQL注入会带来严重的安全风险。请阅读-总结是，这不是解决志愿者问题的理想方法，可能会对获得答案产生反作用。请不要将此添加到您的问题中。