Recaptcha不工作，虽然它在我的另一个网站上使用相同的代码？

Question

所以我最近不得不在我的公司网站上添加一个recaptcha，我过去在其他网站上实现了这个，所以我想我会使用该代码并替换网站密钥，它会起作用。到目前为止还没有。

我的公司网站查看：

                    <?php echo $this->Form->create(null, ['url' => ['controller' => 'Content', 'action' => 'qbsignup']]); ?>
                    <?php echo $this->Form->input('full_name',['type'=>'text', 'required'=>true]); ?>
                    <?php echo $this->Form->input('email',['type'=>'email', 'required'=>true]); ?>
                    <?php echo $this->Form->input('phone_number',['type'=>'text', 'required'=>false]); ?>

                    <div class="g-recaptcha" data-sitekey="mysitekey"></div>
                    <?php echo $this->Form->submit('Sign Up'); ?>
                    <small>By submitting this form, you agree to allow Net2Sky to contact you about QuickBooks related information.</small>
                    <?php echo $this->Form->end(); ?>

虽然这是我公司的控制人员：

if(!empty($this->request->data)) {
            //verify google recaptcha
            $url = "https://www.google.com/recaptcha/api/siteverify";
            $privatekey='myprivatekey';

            $response = file_get_contents("https://www.google.com/recaptcha/api/siteverify?secret=".$privatekey."&response=".($this->data['g-recaptcha-response'])."&remoteip=".$_SERVER['REMOTE_ADDR']);
            //$url."?secret".$privatekey."&response=".($this->data['g-recaptcha-response'])."&remoteip=".$_SERVER['REMOTE_ADDR']);
            $data2 =json_decode($response, true);

            if(intval($data2["success"])==1){
                $error=0;
            }else{
                $error=1;
                $this->Session->setFlash("Please fill out the Security CAPTCHA and try again.");
            }

            if ($error == 0) {
            foreach($this->request->data as $n => $m):
                $body .= "<b>" . $n . ":</b> " . $m . "<br />";
            endforeach;
            $body .= "</p><p>Date Of Submission: " . date("m/d/Y H:i") . "<p>";

            $email = new Email('default');

            $result = $email ->from(['aemailaddress' => 'Our Site'])
                    ->to('aemailaddress')
                    ->emailFormat('both')
                    ->subject('QuickBooks Signup')
                    ->send($body);


            if($result) {
                $this->redirect('/qbsignup/'.$this->request->data['full_name']);
            }
            else {
                $this->redirect('/qbsignup');
            }

        }
        else {
            $this->set('name', $fullname);
        }
        }

所以我有点困惑，为什么它不起作用，只返回失败的代码。

以下是代码工作的其他网站的信息： 视图：

<?php echo $this->Form->create(['url' => '/Forms/contact']); ?>
<?php echo $this->Form->input('Contact.name', array('label' => 'Name', 'size' => '33', 'required' => 'required')); ?>
    <?php echo $this->Form->input('Contact.phone', array('label' => 'Phone Number', 'size' => '20', 'required' => 'required')); ?>
<?php echo $this->Form->input('Contact.email', array('label' => 'E-mail Address', 'size' => '22', 'required' => 'required')); ?>
    <?php echo $this->Form->input('Contact.topic', array('label' => 'What service are you interested in?', 'options'=>
        array('Tree Removal'=>'Tree Removal','Tree Trimming'=>'Tree Trimming','Mulch Delivery'=>'Mulch Delivery','Emergency Service'=>'Emergency Service','Other'=>'Other'))); ?>
<?php echo $this->Form->input('Contact.needs', array('label' => 'How may we help you?', 'after' => '<p style="padding: 0;margin: 0; font-size: 80%;">(we\'ll respond within 1 hour or less between 7 am and 7 pm)</p>', 'rows' => '5', 'cols' => '45', 'required' => 'required')); ?>
    <?php echo $this->Form->hidden('Contact.page', array('value' => 'home')); ?>
    <div class="g-recaptcha" data-sitekey="sitekey"></div>

<?php echo $this->Form->submit(); ?>
<?php echo $this->Form->end(); ?>

它是控制器：

        if (!empty($this->data['Contact'])) {

            //verify google recaptcha
            $url = "https://www.google.com/recaptcha/api/siteverify";
            $privatekey='myprivatekey';

            $response = file_get_contents("https://www.google.com/recaptcha/api/siteverify?secret=".$privatekey."&response=".($this->data['g-recaptcha-response'])."&remoteip=".$_SERVER['REMOTE_ADDR']);
            //$url."?secret".$privatekey."&response=".($this->data['g-recaptcha-response'])."&remoteip=".$_SERVER['REMOTE_ADDR']);
            $data2 =json_decode($response, true);

            if(intval($data2["success"])==1){
                $error=0;
            }else{
                $error=1;
                $this->Session->setFlash("Please fill out the Security CAPTCHA and try again.");
            }

            if ($error == 0) {
            // Craft e-mail
            $subject = "Website Contact";

            $message = "";

            foreach ($this->data['Contact'] as $key => $value) {
                $message .= '{' . $key . '} = > ' . $value . "\n";  
            }
            $message .= '{timestamp} => ' . date('F j, Y \a\t g:i a', time()) . "\n";
            $message .= '{sent from IP} => ' . substr($this->request->clientIp(), 0, 12);


//          $this->Email->to = array('aemailaddress');
//                        $this->Email->from = $this->data['Contact']['email'];
//          $this->Email->template = 'default';
//          $this->Email->subject = $subject;
            if(substr($this->request->clientIp(), 0, 12) != "aipaddress" && 
            substr($this->request->clientIp(), 0, 11) != "aipaddress"){
                $message .= '{timestamp} => ' . date('F j, Y \a\t g:i a', time()) . "\n";
            $message .= '{sent from IP} => ' . substr($this->request->clientIp(), 0, 12);

            $Email = new CakeEmail();
            $Email ->from(array('aemailaddress' => 'Website Submission'))
                    ->to(array('aemailaddress'))
                    ->subject($subject)
                    ->sender('aemailaddress', 'Website Submission')
                    ->config(array('from' => 'aemailaddress', 'transport'=>'Smtp'))
                    ->send($message);
            //$this->Email->send($message);
                      //  print_r($this->Email);
                      //  exit();
                        $this->Session->setFlash("Thank you for your submission");
                    }
                    else
                    {
                        $this->Session->setFlash("Nice try, spammer.");
                    }
                        $this->redirect("/");
            }
        }

如果有人有任何想法，为什么一个有效，另一个没有，那将是非常有帮助的。或者，如果有人知道为什么一个不起作用并且可以帮助修复。