Struggling with recaptcha v2 and form submission
Using curl
instead of file_get_contents
(should you, like me, want file_get_contents
to be disabled in the server settings)
$post_data = "secret=__your_secret_key__&response=".
$_POST['g-recaptcha-response']."&remoteip=".$_SERVER['REMOTE_ADDR'] ;
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, "https://www.google.com/recaptcha/api/siteverify");
curl_setopt($ch, CURLOPT_POST, true);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_HTTPHEADER,
array('Content-Type: application/x-www-form-urlencoded; charset=utf-8',
'Content-Length: ' . strlen($post_data)));
curl_setopt($ch, CURLOPT_POSTFIELDS, $post_data);
$googresp = curl_exec($ch);
$decgoogresp = json_decode($googresp);
curl_close($ch);
if ($decgoogresp->success == true)
{
// Success
}
I found that sometimes, depending on the PHP version/config, accessing an object directly won't work, so use json_decode()
.
/* $response object returned from https://www.google.com/recaptcha/api/siteverify via which ever method you use */
$obj = json_decode($response);
if($obj->success == true)
{
//passes test
}
else
{
//error handling
}