Php 我想在我现有的“菜单”中添加一个下拉菜单；联系我们“；形式

我想在我的表单中添加一个包含不同服务的下拉菜单。 我希望他们选择其中任何一个值，并在我的电子邮件中获得其他信息

请帮助我修改与我现有代码相关的代码

多谢各位

下面给出的是html代码

<form id="form" method="post" action="contact.php">
                  <fieldset>
                    <label><input type="text" name="Name" value="Name" onBlur="if(this.value=='') this.value='Name'" onFocus="if(this.value =='Name' ) this.value=''"></label>
                    <label><input type="text" name="Email" value="Email" onBlur="if(this.value=='') this.value='Email'" onFocus="if(this.value =='Email' ) this.value=''"></label>
                    <label><textarea name="Message" onBlur="if(this.value==''){this.value='Message'}" onFocus="if(this.value=='Message'){this.value=''}">Message</textarea></label><br>
                    <a href="#" class="button" onClick="document.getElementById('form').submit()">Send</a></div>
                  </fieldset>                   
                </form> 

下面给出的是php代码：

<?php
if(isset($_POST['Email'])) {

    // CHANGE THE TWO LINES BELOW
    $email_to = "jay44556677@gmail.com";

    $email_subject = "website html form submissions";


    function died($error) {
        // your error code can go here
        echo "We're sorry, but there's errors found with the form you submitted.<br /><br />";
        echo $error."<br /><br />";
        echo "Please go back and fix these errors.<br /><br />";
        die();
    }

    // validation expected data exists
    if(!isset($_POST['Name']) ||
        //!isset($_POST['last_name']) ||
        !isset($_POST['Email']) ||
        //!isset($_POST['telephone']) ||
        !isset($_POST['Message'])) {
        died('We are sorry, but there appears to be a problem with the form you submitted.');       
    }

    $first_name = $_POST['Name']; // required
    //$last_name = $_POST['last_name']; // required
    $email_from = $_POST['Email']; // required
    //$telephone = $_POST['telephone']; // not required
    $comments = $_POST['Message']; // required

    $error_message = "";
    $email_exp = '/^[A-Za-z0-9._%-]+@[A-Za-z0-9.-]+\.[A-Za-z]{2,4}$/';
  if(!preg_match($email_exp,$email_from)) {
    $error_message .= 'The Email Address you entered does not appear to be valid.<br />';
  }
    $string_exp = "/^[A-Za-z .'-]+$/";
  if(!preg_match($string_exp,$first_name)) {
    $error_message .= 'The First Name you entered does not appear to be valid.<br />';
  }
  //if(!preg_match($string_exp,$last_name)) {
    //$error_message .= 'The Last Name you entered does not appear to be valid.<br />';
  //}
  if(strlen($comments) < 2) {
    $error_message .= 'The Comments you entered do not appear to be valid.<br />';
  }
  if(strlen($error_message) > 0) {
    died($error_message);
  }
    $email_message = "Form details below.\n\n";

    function clean_string($string) {
      $bad = array("content-type","bcc:","to:","cc:","href");
      return str_replace($bad,"",$string);
    }

    $email_message .= "Name: ".clean_string($first_name)."\n";
    //$email_message .= "Last Name: ".clean_string($last_name)."\n";
    $email_message .= "Email: ".clean_string($email_from)."\n";
    //$email_message .= "Telephone: ".clean_string($telephone)."\n";
    $email_message .= "Comments: ".clean_string($comments)."\n";


// create email headers
$headers = 'From: '.$email_from."\r\n".
'Reply-To: '.$email_from."\r\n" .
@mail($email_to, $email_subject, $email_message, $headers);  
?>
<script language="javascript" type="text/javascript">
        alert('Thank you for the message. We will contact you shortly.');
        window.location = 'contacts.html';
    </script>

<?php
}
die();
?>

---

在表单中添加html代码以扩展下拉列表

<select name="myOpt">
  <option value="volvo">Volvo</option>
  <option value="saab">Saab</option>
  <option value="opel">Opel</option>
  <option value="audi">Audi</option>
</select> 


沃尔沃
萨博
欧宝
奥迪

在php中使用id或名称进行访问
“myOpt”
#在HTML中插入一个包含一些元素的字段#实现验证并将其输出到PHP中的其他字段
<select name="myOpt">
  <option value="volvo">Volvo</option>
  <option value="saab">Saab</option>
  <option value="opel">Opel</option>
  <option value="audi">Audi</option>
</select>