使用 javascript 和 php 提交选择选项

Question

我正在尝试提交一个包含选择选项的表单。当表单通过 javascript 提交时，它会被验证，然后发布到 php 代码中以发送电子邮件。除了未在电子邮件中输出的选择选项值外，表单上的所有内容都有效。请在下面找到代码。我感兴趣的变量是$service。目前 $service 在我收到的电子邮件中输出为空白。其他所有变量都在起作用。

contact.php

<form name="sentMessage" id="contactForm" novalidate>
  <div class="control-group form-group">
    <div class="controls">
      <label>Full Name:</label>
      <input type="text" class="form-control" id="name" required data-validation-required-message="Please enter your name.">
      <p class="help-block"></p>
    </div>
  </div>
  <div class="control-group form-group">
    <div class="controls">
      <label>Phone Number:</label>
      <input type="tel" class="form-control" id="phone" required data-validation-required-message="Please enter your phone number.">
    </div>
  </div>
  <div class="control-group form-group">
    <div class="controls">
      <label>Email Address:</label>
      <input type="email" class="form-control" id="email" required data-validation-required-message="Please enter your email address.">
    </div>
  </div>
  <div class="control-group form-group">
    <div class="controls">
      <label>Service Type:</label>
      <select name="service" id="service" class="form-control" required data-validation-required-message="Please select type.">
      <option value="service1">Service 1</option>
      <option value="service2">Service 2</option>
      <option value="service3">Service 3</option>
    </select>
    </div>
  </div>
  <div class="control-group form-group">
    <div class="controls">
      <label>Message:</label>
      <textarea rows="10" cols="100" class="form-control" id="message" required data-validation-required-message="Please enter your message" maxlength="999" style="resize:none"></textarea>
    </div>
  </div>
  <div id="success"></div>
  <!-- For success/fail messages -->
  <button type="submit" class="btn btn-primary" id="sendMessageButton">Send Message</button>
</form>
</div>

contact_me.js

$(function() {

  $("#contactForm input,#contactForm textarea").jqBootstrapValidation({
    preventSubmit: true,
    submitError: function($form, event, errors) {
      // additional error messages or events
    },
    submitSuccess: function($form, event) {
      event.preventDefault(); // prevent default submit behaviour
      // get values from FORM
      var name = $("input#name").val();
      var email = $("input#email").val();
      var phone = $("input#phone").val();
      var service = $("option#service").val();
      var message = $("textarea#message").val();
      var firstName = name; // For Success/Failure Message
      // Check for white space in name for Success/Fail message
      if (firstName.indexOf(' ') >= 0) {
        firstName = name.split(' ').slice(0, -1).join(' ');
      }
      $this = $("#sendMessageButton");
      $this.prop("disabled", true); // Disable submit button until AJAX call is complete to prevent duplicate messages
      $.ajax({
        url: "./../mail/contact_me.php",
        type: "POST",
        data: {
          name: name,
          phone: phone,
          email: email,
          service: service,
          message: message
        },
        cache: false,
        success: function() {
          // Success message
          $('#success').html("<div class='alert alert-success'>");
          $('#success > .alert-success').html("<button type='button' class='close' data-dismiss='alert' aria-hidden='true'>&times;")
            .append("</button>");
          $('#success > .alert-success')
            .append("<strong>Your message has been sent. </strong>");
          $('#success > .alert-success')
            .append('</div>');
          //clear all fields
          $('#contactForm').trigger("reset");
        },
        error: function() {
          // Fail message
          $('#success').html("<div class='alert alert-danger'>");
          $('#success > .alert-danger').html("<button type='button' class='close' data-dismiss='alert' aria-hidden='true'>&times;")
            .append("</button>");
          $('#success > .alert-danger').append($("<strong>").text("Sorry " + firstName + ", it seems that my mail server is not responding. Please try again later!"));
          $('#success > .alert-danger').append('</div>');
          //clear all fields
          $('#contactForm').trigger("reset");
        },
        complete: function() {
          setTimeout(function() {
            $this.prop("disabled", false); // Re-enable submit button when AJAX call is complete
          }, 1000);
        }
      });
    },
    filter: function() {
      return $(this).is(":visible");
    },
  });

  $("a[data-toggle=\"tab\"]").click(function(e) {
    e.preventDefault();
    $(this).tab("show");
  });
});

/*When clicking on Full hide fail/success boxes */
$('#name').focus(function() {
  $('#success').html('');
});

contact_me.php

<?php
// Check for empty fields
if(empty($_POST['name'])      ||
   empty($_POST['email'])     ||
   empty($_POST['phone'])     ||
   empty($_POST['message'])   ||
   !filter_var($_POST['email'],FILTER_VALIDATE_EMAIL))
   {
   echo "No arguments Provided!";
   return false;
   }

$name = strip_tags(htmlspecialchars($_POST['name']));
$email_address = strip_tags(htmlspecialchars($_POST['email']));
$phone = strip_tags(htmlspecialchars($_POST['phone']));
$service = strip_tags(htmlspecialchars($_POST['service']));
$message = strip_tags(htmlspecialchars($_POST['message']));


// Create the email and send the message
$to = 'yourname@yourdomain.com'; // Add your email address inbetween the '' replacing yourname@yourdomain.com - This is where the form will send a message to.
$email_subject = "Website Contact Form:  $name";
$email_body = "You have received a new message from your website contact form.\n\n"."Here are the details:\n\nName: $name\n\nEmail: $email_address\n\nPhone: $phone\n\nService Type: $service\n\nMessage:\n$message";
$headers = "From: noreply@yourdomain.com\n"; // This is the email address the generated message will be from. We recommend using something like noreply@yourdomain.com.
$headers .= "Reply-To: $email_address";
mail($to,$email_subject,$email_body,$headers);
return true;
?>

我可能忽略了一些明显的事情，或者我根本没有走在正确的轨道上。感谢您的帮助。

当前输出：

You have received a new message from your website contact form.

Here are the details:

Name: aksjdn

Email: kjsandf@gmail.com

Phone: laskjdfo23

Service Type:

Message:
askjfdnaskljdfn 21:57:45

Answer 1

我认为你的错误是因为获得了服务的价值。 你现在正在做：

var service = $("option#service").val();

但你真正想做的是：

var service = $("select#service").val();

Answer 2

我综合了 Swati 和 Luke Hol 的评论来获得输出。

var service = $("#service option:selected").val();

感谢您的帮助。