My re-CAPTCHA doesn´t work - php

Question

I use re-CAPTCHA on my website but it doesn't work when I click LOGIN it says Robot verification failed, please try again I don´t know how to fix it... every time :/
Thanks for help.
If you have better script send me please.
if(isset($_POST['g-recaptcha-response']) && !empty($_POST['g-recaptcha-response']))
{
$secret = '**************';
$verifyResponse = file_get_contents('https://www.google.com/recaptcha/api/siteverify?secret='.$secret.'&response='.$_POST['g-recaptcha-response']);
$responseData = json_decode($verifyResponse);
if($responseData->success)
{
}else{
echo "<div class='container'><div class='alert alert-danger'><p>Robot verification failed, please try again.</p></div>";
}
}else{
echo "<div class='container'><div class='alert alert-danger'><p>Please click on the reCAPTCHA box.</p></div>";
}

Answer 1

I use ReCaptcha package for Composer when handling captchas.
If you don't know what Composer is, I suggest you head to http://composer.org/
Composer is a PHP dependency manager and it can be really useful when building modern PHP apps.
ReCaptcha Package: https://packagist.org/packages/google/recaptcha
Code samples are also included in the link.

Answer 2

Here is how I handle Google Re-Captcha on the Server:
//process captia response with a custom method.
$captcha = checkCaptia($_POST['g-recaptcha-response']);
if ($captcha){
mailLead();
}
else{
header('location: https://...');
die();
}
Method to handle captcha check...
function checkCaptia($captcha){
$url = 'https://www.google.com/recaptcha/api/siteverify';
$data = array(
'secret'=>';jaskdf;asdkjf',
'response'=>$captcha,
'remoteip'=>$_SERVER['REMOTE_ADDR']
);
$options = array(
'http' => array(
'header' => "Content-type: application/x-www-form-urlencoded\r\n",
'method' => 'POST',
'content' => http_build_query($data)
)
);
$context = stream_context_create($options);
$result = json_decode(file_get_contents($url, false, $context),TRUE);
return $result;
}