谷歌验证码(联系人仍然发送）

我的联系页面有问题，非常感谢有人可以帮助我进行谷歌验证码编码。

我已经将所有脚本和密钥添加到我的 html 中。它显示在我的网站上，但即使我没有点击验证码，我的联系页面仍然通过。我知道是我的 java 脚本正在通过验证码。下面是html代码，javascript和php编码。希望有人能让我知道出了什么问题。

网页代码：

<div class="col-md-6 col-md-6">
                    <h3 class="title">Contact Form</h3>
                    <p class="form-message"></p>
                    <div class="contact-form">
                        <!-- Form Begins -->
                        <form role="form" name="contactform" id="contactform" method="post" action="php/contact-form-recaptcha.php">
                            <div class="row">
                                <div class="col-md-6">
                                    <!-- Field 1 -->
                                    <div class="input-text form-group">
                                        <input type="text" name="contact_name" class="input-name form-control"
                                        placeholder="Full Name" />
                                    </div>
                                </div>
                                <div class="col-md-6">
                                    <!-- Field 2 -->
                                    <div class="input-email form-group">
                                        <input type="email" name="contact_email" class="input-email form-control"
                                        placeholder="Email" />
                                    </div>
                                </div>
                            </div>
                            <!-- Field 3 -->
                            <div class="input-email form-group">
                                <input type="text" name="contact_phone" class="input-phone form-control" placeholder="Phone" />
                            </div>
                            <!-- Field 4 -->
                            <div class="textarea-message form-group">
                                <textarea name="contact_message" class="textarea-message form-control" placeholder="Message"
                                rows="6"></textarea>
                            </div></DIV>
                            <!-- Captcha Box -->
                            <div class="g-recaptcha" data-sitekey="6************************************Z"></div>
                            <!-- Button -->
                            <button class="btn btn-default" type="submit">Send Now 
                            <i class="icon-paper-plane"></i></button>
                        </form>
                        <!-- Form Ends -->
                    </div>

Javascript（如果所有字段都已填写，这是通过recaptcha的javascript）：

/* ---------------------    
    Contact Form  
/* --------------------- */
simplecontactForm: function(){  
    if ( $( "#contactform" ).length !== 0 ) {
    $('#contactform').bootstrapValidator({
            container: 'tooltip',
            feedbackIcons: {
                valid: 'fa fa-check',
                warning: 'fa fa-user',
                invalid: 'fa fa-times',
                validating: 'fa fa-refresh'
            },
            fields: { 
                contact_name: {
                    validators: {
                        notEmpty: {
                            message: ''
                        }
                    }
                },
                contact_email: {
                    validators: {
                        notEmpty: {
                            message: ''
                        },
                        emailAddress: {
                            message: ''
                        },
                        regexp: {
                                regexp: '^[^@''s]+@([^@''s]+''.)+[^@''s]+$',
                                message: 'The value is not a valid email address'
                        }
                    }
                },
                contact_phone: {
                    validators: {
                        notEmpty: {
                            message: ''
                        }
                    }
                },
                contact_message: {
                    validators: {
                        notEmpty: {
                            message: ''
                        }
                    }
                },
            }
        })  
        .on('success.form.bv', function(e) {
            e.preventDefault();
            var $form        = $(e.target),
            validator    = $form.data('bootstrapValidator'),
            submitButton = validator.getSubmitButton();
            var form_data = $('#contactform').serialize();
            $.ajax({
                    type: "POST",
                    dataType: 'json',
                    url: "../php/contact-form-recaptcha.php",                   
                    data: form_data,
                    success: function(msg){                     
                        $('.form-message').html(msg.data);
                        $('.form-message').show();
                        submitButton.removeAttr("disabled");
                        resetForm($('#contactform'));                       
                    },
                    error: function(msg){}
             });
            return false;
        });
    }
    function resetForm($form) {
        $form.find(
                'input:text, input:password, input, input:file, select, textarea'
            )
            .val('');
        $form.find('input:radio, input:checkbox')
            .removeAttr('checked')
            .removeAttr('selected');
        $form.find('button[type=submit]')
            .attr("disabled", "disabled");
    }
},

PHP （contact-form-recaptcha.php）：

<?php
    if(isset($_POST['submit']) && !empty($_POST['submit'])):
    if(isset($_POST['g-recaptcha-response']) && !empty($_POST['g-recaptcha-response'])):
    //your site secret key
    $secret = '6*****************************u';
    //get verify response data
    $verifyResponse = file_get_contents('https://www.google.com/recaptcha/api/siteverify?secret='.$secret.'&response='.$_POST['g-recaptcha-response']);
    $responseData = json_decode($verifyResponse);
    if($responseData->success):
        //contact form submission code
        $to_email = "testing@testing.com"; // email address to which the form data will be sent
        $subject = "Contact Request"; // subject of the email that is sent
        $thanks_page = "index.html"; // path to the thank you page following successful form submission
        $contact_page = "index.html"; // path to the HTML contact page where the form appears
        $nam = strip_tags($_POST["contact_name"]);
        $ema = strip_tags($_POST["contact_email"]);
        $pho = strip_tags($_POST["contact_phone"]);
        $com = strip_tags($_POST["contact_message"]);
        // Always set content-type when sending HTML email
        $headers = "MIME-Version: 1.0" . "'r'n";
        $headers .= "Content-type:text/html;charset=UTF-8" . "'r'n";
        // More headers
        $headers .= 'From:'.$nam.' <'.$ema.'>' . "'r'n";
        //send email
        $email_body = 
        "<strong>From: </strong>" . $nam . "<br />
        <strong>Email: </strong>" . $ema . "<br />  
        <strong>Phone: </strong>" . $pho . "<br />  
        <strong>Message: </strong>" . $com;
        $succMsg = 'Your contact request have submitted successfully.';
    else:
        $errMsg = 'Robot verification failed, please try again.';
    endif;
else:
    $errMsg = 'Please click on the reCAPTCHA box.';
endif;
else:
$errMsg = '';
$succMsg = '';
endif;
?>

请帮帮我...谢谢一百万...