php - 如何使用两个日期选择器从我的数据库获取数据。代码点火器

Question

我想在两个日期选择器之间选择数据库中的所有数据。请帮助我了解如何在这种情况下使用 BETWEEN AND 语句。我从第一个日期选择器中选择一个日期，然后数据显示，但是当我在第二个日期选择器上选择日期时，第二个日期选择器中的日期数据仅显示，第一个日期消失了

我使用了这个查询

$this->db->where('date_sold >=',$this->input->post('selectdate'));

$this->db->where('date_sold <=',$this->input->post('selectdate2'));

但我只得到 1 条数据..

<span>Select 1st sem:</span>
                <div id="datetimepicker1" class="input-append date">
                    <input data-format="MM/dd/yyyy" type="text" readonly name="selectDate" id="selectDate"></input>                                 
                    <span class="add-on">
                      <i data-time-icon="icon-time" data-date-icon="icon-calendar">
                      </i>                                                        
                    </span>
                </div>
                <script type="text/javascript">

                 $(function(){ 
                    var date = new Date();
                    date.setDate(date.getDate());

                      $('#datetimepicker1').datetimepicker({                            
                            pickTime: false
                      });

                  });
                </script>   

                <span>Select 2st sem:</span>
                <div id="datetimepicker2" class="input-append date">
                    <input data-format="MM/dd/yyyy" type="text" readonly name="selectDate" id="selectDate2"></input>                                    
                    <span class="add-on">
                      <i data-time-icon="icon-time" data-date-icon="icon-calendar">
                      </i>                                                        
                    </span>
                </div>

                <script type="text/javascript">

                 $(function(){ 
                    var date = new Date();
                    date.setDate(date.getDate());
                      $('#datetimepicker2').datetimepicker({                            
                            pickTime: false
                      });

                  });
                </script>   

/这是我的观点

    function get_semreportdata(){
    $q = $this->db->select('
             books.title,
             reserved_books.id,
             reserved_books.isbn, 
             reserved_books.price,
             reserved_books.item_sold,
             reserved_books.date_sold,
             reserved_books.total_amount
            ')
        ->from('reserved_books')
        ->join('books','reserved_books.isbn= books.isbn')
        ->where('date_sold >=',$this->input->post('selectdate'))
        ->where('date_sold <=',$this->input->post('selectdate2'));



        $reserved['rows'] = $q->get()->result();
        $this->db->select_sum('total_amount');
        $this->db->where('date_sold',$this->input->post('selectdate'));

        $query = $this->db->get('reserved_books');
        $reserved['total'] = $query->result();

        return $reserved;

}

这是我的模型

Answer 1

在代码示例中，这两个字段都被命名为 selectDate。我认为这就是您原来的查询不起作用的原因。尝试将第二个字段重命名为selectdate2