有人知道为什么我的HTML表单不提交任何东西吗？当我点击提交按钮时，它什么也不做？不知道发生了什么，检查了所有的东西，但还是不能理解它？如果有人知道，这将是非常有帮助的，谢谢！

<div class="row">
<div class="col-md-6">

    <div class="alert alert-success hidden" id="contactSuccess">
        <strong>Success!</strong> Your message has been sent to us.
    </div>

    <div class="alert alert-danger hidden" id="contactError">
        <strong>Error!</strong> There was an error sending your message.
    </div>

    <form name="register" action="register.php" id="contactForm" type="POST">
        <div class="row">
            <div class="form-group">
                <div class="col-md-6">
                    <label>First name *</label>
                    <input type="text" value="" data-msg-required="Please enter your first name." maxlength="100" class="form-control" name="first_name" id="name">
                </div>
                <div class="col-md-6">
                    <label>Last name *</label>
                    <input type="text" value="" data-msg-required="Please enter your last name." maxlength="100" class="form-control" name="last_name" id="name">
                </div>
            </div>
        </div>
        <div class="row">
            <div class="form-group">
                <div class="col-md-12">
                    <label>Your email address *</label>
                    <input type="email" value="" data-msg-required="Please enter your email address." data-msg-email="Please enter a valid email address." maxlength="100" class="form-control" name="email_address" id="email">
                </div>
            </div>
        </div>
        <div class="row">
            <div class="form-group">
                <div class="col-md-6">
                    <label>Username *</label>
                    <input type="text" value="" data-msg-required="Please enter a valid username." maxlength="100" class="form-control" name="username" id="name">
                </div>
                <div class="col-md-6">
                    <label>Contact Number *</label>
                    <input type="number" value="" data-msg-required="Please enter your mobile number." maxlength="100" class="form-control" name="mobile" id="name">
                </div>
            </div>
        </div>
        <div class="row">
            <div class="form-group">
                <div class="col-md-6">
                    <label>Date of birth *</label>
                    <br>
                    <fieldset class="date">
                        <select id="date1" name="date1" />
                        <option>1</option>
                        <option>2</option>
                        <option>…</option>
                        </select>
                        <select id="date2" name="date2" />
                        <option>Jan</option>
                        <option>Feb</option>
                        <option>Mar</option>
                        </select>
                        <select id="date3" name="date3" />
                        <option>1905</option>
                        <option>1906</option>
                        </select>
                    </fieldset>
                </div>
                <div class="col-md-6">
                    <label>Contact Number *</label>
                    <input type="radio" name="gender" value="Male">Male
                    <input type="radio" name="gender" value="Female">Female
                </div>
            </div>
        </div>
        <div class="row">
            <div class="col-md-12">
                <input type="submit" name="Submit" value="Register" class="btn btn-lg btn-primary">
            </div>
        </div>
    </form>
</div>

我正在使用我的网站上的联系表的注册表的副本，因为它看起来好多了，也许这是原因之一？
按照要求注册：

<?

include 'core/init.php';

// Define post fields into simple variables
$first_name = mysql_real_escape_string($_POST['first_name']);
$last_name = mysql_real_escape_string($_POST['last_name']);
$email_address = mysql_real_escape_string($_POST['email_address']);
$username = mysql_real_escape_string($_POST['username']);
$mobile = $_POST['mobile'];
$gender = $_POST['gender'];
$date1 = $_POST['date1'];
$date2 = $_POST['date2'];
$date3 = $_POST['date3'];

/* Let's strip some slashes in case the user entered
any escaped characters. */

$first_name = stripslashes($first_name);
$last_name = stripslashes($last_name);
$email_address = stripslashes($email_address);
$username = stripslashes($username);
$gender = stripslashes($gender);



/* Do some error checking on the form posted fields */

if((!$first_name) || (!$last_name) || (!$email_address) || (!$gender) || (!$username)){
    if(!$first_name){
        header('Location: signup.php?signuperror=2');
    }
    if(!$last_name){
        header('Location: signup.php?signuperror=3');
    }
    if(!$email_address){
        header('Location: signup.php?signuperror=4');
    }
    if(!$username){
        header('Location: signup.php?signuperror=5');
    }
    if(!$gender){
        header('Location: signup.php?signuperror=6');
    }
    include "signup.php"; // Show the form again!
    /* End the error checking and if everything is ok, we'll move on to
     creating the user account */
    exit(); // if the error checking has failed, we'll exit the script!
}
    
/* Let's do some checking and ensure that the user's email address or username
 does not exist in the database */
 
 $sql_email_check = mysql_query("SELECT email_address FROM users WHERE email_address='$email_address'");
 $sql_username_check = mysql_query("SELECT username FROM users WHERE username='$username'");
 
 $email_check = mysql_num_rows($sql_email_check);
 $username_check = mysql_num_rows($sql_username_check);
 
 if(($email_check > 0) || ($username_check > 0)){
    if($email_check > 0){
        header('Location: signup.php?signuperror=7');
        unset($email_address);
    }
    if($username_check > 0){
        header('Location: signup.php?signuperror=8');
        unset($username);
    }
    include 'signup.php'; // Show the form again!
    exit();  // exit the script so that we do not create this account!
 }
 
/* Everything has passed both error checks that we have done.
It's time to create the account! */

/* Random Password generator. 
http://www.phpfreaks.com/quickcode/Random_Password_Generator/56.php

We'll generate a random password for the
user and encrypt it, email it and then enter it into the db.
*/

function makeRandomPassword() {
  $salt = "abchefghjkmnpqrstuvwxyz0123456789";
  srand((double)microtime()*1000000); 
    $i = 0;
    while ($i <= 7) {
            $num = rand() % 33;
            $tmp = substr($salt, $num, 1);
            $pass = $pass . $tmp;
            $i++;
    }
    return $pass;
}

$random_password = makeRandomPassword();

$db_password = md5($random_password);

// Enter info into the Database.
$info2 = htmlspecialchars($info);
$sql = mysql_query("INSERT INTO users (first_name, last_name, email_address, username, password, gender, date1, date2, date3, signup_date, mobile)
        VALUES('$first_name', '$last_name', '$email_address', '$username', '$db_password', '$gender', '$date1', '$date2', '$date3', now(), '$mobile')") or die (mysql_error());

if(!$sql){
    header('Location: signup.php?signuperror=9');
} else {
    $userid = mysql_insert_id();
    // Let's mail the user!
    $subject = "BaseCentre Members";
    $message = "Dear $first_name $last_name,
    Thank you for registering at BaseCentre, http://www.basecentre.co.uk/
    
    You are two steps away from logging in and accessing our exclusive entertainment.
    
    To activate your membership, please click here: http://www.basecentre.co.uk/activate.php?id=$userid&code=$db_password
    
    Once you activate your memebership, you will be able to login with the following information:
    Username: $username
    Password: $random_password
    
    Thanks!
    Base Admin Team.
    
    This is an automated response, please do not reply!";
    
    mail($email_address, $subject, $message, "From: BaseCentre Members<admin@basecentre.co.uk>\nX-Mailer: PHP/" . phpversion());
    ////// MAIL ADMIN
    $subject2 = "BaseCentre New User!";
    $message2 = "Dear Admin,
    This is a message to alert you that a new user has signed up to BaseCentre.
    
    You can view all details of the new member and all other members direct from the admin control panel at http://basecentre.co.uk/admin.php
    
    Here are the details of the new registered user:
    Username: $username
    Email Address: $email_address
    
    Thanks!
    BaseCentre Automation.
    
    This is an automated response, please do not reply!";
    
    mail('aidan6141@hotmail.co.uk', $subject2, $message2, "From: BaseCentre Members<admin@basecentre.co.uk>\nX-Mailer: PHP/" . phpversion());
    header('Location: login.php?loginerror=6');
include 'login.php';
}

?>

JS脚本参考：

/*
Name:           View - Contact
Written by:     Okler Themes - (http://www.okler.net)
Version:        2.0
*/

(function() {

    "use strict";

    var Contact = {

        initialized: false,

        initialize: function() {

            if (this.initialized) return;
            this.initialized = true;

            this.build();
            this.events();

        },

        build: function() {

            this.validations();

        },

        events: function() {


        },

        validations: function() {

            $("#contactForm").validate({
                submitHandler: function(form) {

                    // Loading State
                    var submitButton = $(this.submitButton);
                    submitButton.button("loading");

                    // Ajax Submit
                    $.ajax({
                        type: "POST",
                        url: "php/contact-form.php",
                        data: {
                            "name": $("#contactForm #name").val(),
                            "email": $("#contactForm #email").val(),
                            "subject": $("#contactForm #subject").val(),
                            "message": $("#contactForm #message").val()
                        },
                        dataType: "json",
                        success: function (data) {
                            if (data.response == "success") {

                                $("#contactSuccess").removeClass("hidden");
                                $("#contactError").addClass("hidden");

                                // Reset Form
                                $("#contactForm .form-control")
                                    .val("")
                                    .blur()
                                    .parent()
                                    .removeClass("has-success")
                                    .removeClass("has-error")
                                    .find("label.error")
                                    .remove();

                                if(($("#contactSuccess").position().top - 80) < $(window).scrollTop()){
                                    $("html, body").animate({
                                         scrollTop: $("#contactSuccess").offset().top - 80
                                    }, 300);
                                }

                            } else {

                                $("#contactError").removeClass("hidden");
                                $("#contactSuccess").addClass("hidden");

                                if(($("#contactError").position().top - 80) < $(window).scrollTop()){
                                    $("html, body").animate({
                                         scrollTop: $("#contactError").offset().top - 80
                                    }, 300);
                                }

                            }
                        },
                        complete: function () {
                            submitButton.button("reset");
                        }
                    });
                },
                rules: {
                    name: {
                        required: true
                    },
                    email: {
                        required: true,
                        email: true
                    },
                    subject: {
                        required: true
                    },
                    message: {
                        required: true
                    }
                },
                highlight: function (element) {
                    $(element)
                        .parent()
                        .removeClass("has-success")
                        .addClass("has-error");
                },
                success: function (element) {
                    $(element)
                        .parent()
                        .removeClass("has-error")
                        .addClass("has-success")
                        .find("label.error")
                        .remove();
                }
            });

        }

    };

    Contact.initialize();

})();