提交包含两个日期字段的表单并在 PHP 中使用 date

大家好，我正在提交一个包含两个字段“time_in”和“time_out”的表单

我试图使用 date_diff() 获取两个日期之间的差异我确保数据库中的 time_in 是 DATE 共振峰和 time_out DATE 格式，并且两者都不是字符串

我收到此错误：致命错误：未捕获类型错误：date_diff0：参数 #1 (SbaseObject) 必须为 DateTimeInterface 类型，字符串在 C:\ampp\htdocs\aicAdmin\scripts\backend-script.php:97Stack 中给出跟踪：#0 C:ilxampp\htdocs\aicAdmin\scripts\backend-script.php(97):date_diff(°2023-05-19,2023-05-23#1(main) throwinC:\xampp\htdocs\aicAdmin\scripts\backend -script.phponline97

而我的代码是

<div class="col">
            <div class="form-group">
                <input type="date"  class="form-control"  placeholder="Enter Time in" name="time_in" value="<?php echo $time_in; ?>">
            </div>
        </div> 

    <div class="col">
            <div class="form-group">
                <input type="date"  class="form-control"  placeholder="Enter Time out" name="time_out" value="<?php echo $time_in; ?>">
            </div>
        </div>

以及后端代码

if(empty($_GET['id']) && !empty($_GET['name']) && $_GET['name']=='current_job'){
   extract($_POST);
  if(!empty($jobnumber)){
   

      $data= [
        'jobnumber'=>$jobnumber,
       'revison' =>$revison,
       'groupp'=>$groupp,
       'checker'=>$checker,
       'releasedate'=> $releasedate,
       'quote_number'=> $quote_number,
       'building_number'=>$building_number,
       'task'=>$task,
       'designer_ca'=>$designer_ca,
       'designer_name'=>$designer_name,
       'time_in'=>$time_in,
       'time_schedule'=>$time_schedule,
       'time_out'=>$time_out,
       'spent_time'=>date_diff($time_out,$time_in),   
       'quote_weight'=>$quote_weight,
       'job_weight'=>$job_weight,
       'cycle_time'=>$cycle_time,
       'chk_time'=>$chk_time,
       'wd'=>$wd,
       'remarks'=>$remarks

       
     ];
  

    $tableName=$_GET['name']; 

    if(!empty($data) && !empty($tableName)){
       $insertData=insert_data($data,$tableName);
       if($insertData){
         echo "<span class='success'>Current Job Was saved sucessfully</span>";
       }else{
         echo "<span class='fail'>Error!.. check your query</span>";
       }
    }

}else{
  echo "<span class='fail'>Current Job field is empty</span>";
}

}

我没有复制整个表单代码，只是复制了一个片段我该如何解决这个问题？？

我仔细检查了数据库中的 time_in 和 time_out 是否存储为 DATE 格式，我希望一切正常工作

$datetime_in = DateTime::createFromFormat('h:i a', $form_time_in); $datetime_out = DateTime::createFromFormat('h:i a', $form_time_out); $seconds_elapsed = $datetime_out->format('U') - $datetime_in->format('U');