无法通过回调使用codeigniter验证来验证文本字段

Question

我想使用codeigniter验证在文本字段之间进行验证。我创造了validateSchedule函数，将在回调时进行验证，但此处不进行验证工作仅在需要的条件下工作。

public function validateSchedule()
{       
            $fromDate=$_POST['from_date'];  
            $toDate=$_POST['toDate'];
            if(empty($toDate) || empty($fromDate))
            {
                return TRUE;
            }
            else 
            {  

            $diffNoof_days = 10;
            if(strtotime($fromDate) > strtotime($toDate)){
                $this->form_validation->set_message('validateSchedule','from_date_must_be_smaller_than_to_date');
                return FALSE;
            }else if(strtotime($fromDate) == strtotime($toDate)){
                $this->form_validation->set_message('validateSchedule','from_date_to_must_not_be_same');
                return FALSE;
            }else if($diffNoof_days>10)
            {   
                $this->form_validation->set_message('validateSchedule','duration_should_not_exceed_10_days');
                return FALSE;
            }
            }

}

$this->form_validation->set_rules('from_date','From Date','trim|required');
$this->form_validation->set_rules('to_date','To Date','trim|required|callback_validateSchedule');

Answer 1

您没有显示实际的回调，所以我推测您通过不删除callback_前缀而将方法命名错误。换句话说，定义

public callback_validateSchedule($str)
{
   ...
}

应该是

public validateSchedule($str)
{
   ...
}

如果我猜错了，请显示validateSchedule()的实际代码