如果空消息出現所有下降的時間下來

Question

在我的下拉框，它是一個必需的領域，但即使事情已經選擇出現驗證消息，

if(empty($data['department']) || strlen($data['department'])) 
    { 
    $err[] = "ERROR - Please enter the department you are applying for."; 
    } 

這是從

拉

$insert = "INSERT into users 
`department`, VALUES ('$data[department])"; 

HTML：

<td>Department<span class="required">*</span> </td> 
     <td><select name="department" id="department"> 

      <option value="" selected></option> 

      <option <? if($department == '1') { ?> selected <? } ?> 
value="1">1</option> 

      <option <? if($department== '2') { ?> selected <? } ?> value="2">2 
    </option> 

      <option <? if($department == '3') { ?> selected <? } ?> 
value="3">3</option> 


      </select> 

Answer 1

試試這個：

if (empty($data['department'])) 
{ 
    $err[] = "ERROR - Please enter the department you are applying for."; 
} 

你並不需要檢查的strlen如果變量是空

Answer 2

您可能希望從刪除selected 210並嘗試，因爲如果$department==1那麼你有兩個selected選項可能會導致錯誤。

Answer 3

此行是矛盾的，將始終返回true。

empty($data['department']) || strlen($data['department']) 

只要使用前半部分，你會沒事的。