Question

我收到一个错误，表示它是空的。但是当我的文本字段为空时，它不会显示错误。我的意思是它允许空字段，但不能在选择的选项

中

这是我的HTML：

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>

<form role="form" id="cakechoices" name="cakechoices" method="post"> 

<label for="dedicationT"> Dedication Text: </label> <input type="text" name="dedicationT" id="dedicationT" size="20" placeholder="Dedication" />

<label for="service_date"> Date: </label> <input type="date" id="service_date" name="service_date" value="M-D-YY"/>

<br> <label> Branch: <select name="branch_name" id="branch_selection" /> 
<option disabled selected value>-- Select one --</option>
<option value="B1">B1 </option>
<option value="B2">B2 </option>
<option value="B3">B3 </option>
<option value="B4">B4 </option>
</select> </label> 
</br>

<input type="submit" id="submit" class="btn btn-default" value="Order Now" />

</form>

这是我的php：

<?php

  $link = mysql_connect('localhost', 'root', '');
  if (!$link) { die('Could not connect: ' . mysql_error()); }
  if (!mysql_select_db('myrnas')) {  die('Could not select database: ' . mysql_error()); }

  session_start();
$dedicationT = $_POST['dedicationT'];
$service_date = $_POST['service_date'];
$branch_name = $_POST['branch_name'];

$query1 = "INSERT INTO order_cake (dedicationT, service_date, branch_name) VALUES ( '$dedicationT', '$service_date', '$branch_name');

if(@mysql_query($query1,$link))
   {  echo "Done!";  }  
   else {  print '<p> <h1> Somethings wrong, failed to connect!!!. GAD WHY!?! </h1> '.mysql_error().'</p>';  }

?>

这是我的错误：未定义的索引： D：\ Xampp \ htdocs \ system \ customize \ ordersent.php 中的Branch_name 4

这是我在html文件中的Ajax相同

function submit_order($form) {
    $.ajax({
      url   : "process/ordersent.php", 
      type  : "POST",
      cache : false,
      data  : $form.serialize(),
      success: function(response) {

        alert(response);
        if(response == "Done")  {
            window.location.href = "home.php";
          } 
      }
    });
  }


      $('#submit').click(function(){ /* when the submit button in the modal is clicked, submit the form */
        swal({
          title: "Are you sure?",
          type: "warning",
          showCancelButton: true,
          confirmButtonColor: "#ff5c33",
          confirmButtonText: "Order Now!",
          closeOnConfirm: false
        },


        function(isConfirm){
          if (isConfirm) {

            submit_order( $('#cakechoices'));
            //swal("Deleted!", "Your imaginary file has been deleted.", "success");
          } 
        });

        return false;
      });

希望有人可以帮助我！

Answer 1

这是由于＆＃34;禁用＆＃34;属性。只需删除它和帖子＆＃34; branch_name＆＃34;将以空值发送。

您将其设置为已停用，结果是根本不会发送$ _POST [＆＃39; branch_name＆＃39;]变量。

将其更改为：

<option selected value="">-- Select one --</option>

不允许选择任何选定的值

1 个答案: