Question

我能够传递HTML表单中提供的所有表单值，但其中两个无法读取发布。

我可以阅读以下数据：

$fname          = $_POST['fname'];
$lname          = $_POST['lname'];
$email          = $_POST['email'];
$cell           = $_POST['cell'];
$address        = $_POST['address'];
$zip            = $_POST['zip'];
$city           = $_POST['city'];
$program        = $_POST['program'];

这两个变量总是读取空值：

$location       = $_POST['program2'];
$batch       = $_POST['batch'];

这是我的HTML代码

<div class="form-group">
  <select class="form-control" name="program" id="program" required>
	        <option readonly>Select Your Class</option>
	        <option>7</option>
	        <option>8</option>
	        <option>9</option>
	        <option>10</option>
	        <option>11</option>
	        <option>12</option>
	    </select>
</div>
<div class="form-group">
  <select class="form-control" name="program2" id="program2" required>
	        <option readonly>Select your Choice</option>
	        <option>1</option>
	        <option>2</option>
	        <option>3</option>
	        <option>4</option>
	    </select>
</div>
<div class="form-group">
  <select class="form-control" name="batch" id="batch" required>
	        <option readonly>Select Your Choice</option>
	        <option>1</option>
	        <option>21</option>`enter code here`
	    </select>
</div>

Answer 1

您应该为选项标记添加'value'属性。像这样：

<option value = "1">1</option>

Answer 2

您没有将值属性传递给选项列表。您的代码应如下所示：

<div class="form-group">
                    <select class="form-control" name="program" id="program" required>
                        <option value="" readonly>Select Your Class</option>
                        <option value="7">7</option>
                        <option value="8">8</option>
                        <option value="9">9</option>
                        <option value="10">10</option>
                        <option value="11">11</option>
                        <option value="12">12</option>
                    </select>
                </div>

                <div class="form-group">
                    <select class="form-control" name="program2" id="program2" required>
                        <option value="" readonly>Select your Choice</option>
                        <option value="1">1</option>
                        <option value="2">2</option>
                        <option value="3">3</option>
                        <option value="4">4</option>                               
                    </select>
                </div>

                <div class="form-group">
                    <select class="form-control" name="batch" id="batch" required>
                        <option value="" readonly>Select Your Choice</option>
                        <option value="1">1</option>
                        <option value="21">21</option>`enter code here`

                    </select>
                </div>
For more reference you could check the below links:

https://www.w3schools.com/tags/tag_select.asp

https://www.w3schools.com/tags/tag_option.asp

表单变量不通过POST

2 个答案: