Javascript 如果按钮上的文本区域为空，提交将在表单验证中显示成功消息

我试图在单击提交按钮时获取错误消息，但仅从

textfield

获取消息，而不是从

textarea

获取消息。这是我的密码。 问题是，如果我提交的字段没有

textarea

，它将显示成功消息

  if(empty($_POST)===false)
            {
                if(empty($_POST['offered'])===true||($_POST['description'])===true)
                    {
    ?>                    
                        <div class="alert alert-warning alert-dismissible text-center" role="alert">
                        <span class="glyphicon glyphicon-exclamation-sign" aria-hidden="true"></span>Add some offers and descriptions
                        </div>
     <?php
}
  else
    {
    $title = $_POST['offered'];
    $offer = $_POST['description'];
    $data = array(
        $page_id,
        $title,
        $offer
    );
    if ($data)
        {
        $add = add_data($data);
        header('location:hotel1_galery.php?page_id=1 && msg=Add Offers Successfully');
        }
      else
    if (!empty($_POST['offered']) && !empty($_POST['description']))
        {
?>                           
                                <div class="alert alert-danger alert-dismissible text-center" role="alert">
                                <span class="glyphicon glyphicon-exclamation-sign" aria-hidden="true"></span><?php
        echo "Add offers and descriptions "; ?></div>
    <?php
        }
    }
}

if（空（$\u POST）==false）
{
如果（空（$_POST['offered']）==true | |（$_POST['description']）==true）
{
?>                    
添加一些优惠和说明
您尚未检查此行中是否为空：

更改此项：

if(empty($_POST['offered'])===true||($_POST['description'])===true)

致：


添加一些优惠和说明
尝试以下操作…文本区域的打开和关闭标记之间没有任何空格
if(empty($_POST['offered'])===true||($_POST['description'])===true)

if(empty($_POST['offered'])||empty(trim($_POST['description'])))

<?php

if(!empty($_POST))
        {
            if(empty($_POST['offered']) || empty($_POST['description']))
                {
?>                    
                    <div class="alert alert-warning alert-dismissible text-center" role="alert">
                    <span class="glyphicon glyphicon-exclamation-sign" aria-hidden="true"></span>Add some offers and descriptions
                    </div>
 <?php                  
                }
            else
                {
                    $title=$_POST['offered'];
                    $offer=$_POST['description'];
                    $data=array($page_id,$title,$offer);

                    if($data)
                        {   
                            $add=add_data($data); 
                            header('location:hotel1_galery.php?page_id=1 && msg=Add Offers Successfully'); 
                        }
                    else if(!empty($_POST['offered']) && !empty($_POST['description']))
                        {
?>                           
                            <div class="alert alert-danger alert-dismissible text-center" role="alert">
                            <span class="glyphicon glyphicon-exclamation-sign" aria-hidden="true"></span><?php echo "Add offers and descriptions "; ?></div>
<?php
                        }               
                }

        }