google recaptcha error in codeigniter php while submiting form - php

Question

i have created a form in codeigniter and given a google captcha v2, i have created the site key and secret key added it to config files, and also added the js and the recaptcha div including my site key. the following is my captcha function in controller:
public function validate_captcha() {
$recaptcha = trim($this->input->post('g-recaptcha-response'));
$userIp= $this->input->ip_address();
$secret='xxxxxxxxxxxx'; (i have given my scret key here)
$secretdata = array(
'secret' => "$secret",
'response' => "$recaptcha",
'remoteip' =>"$userIp"
);
$verify = curl_init();
curl_setopt($verify, CURLOPT_URL, "https://www.google.com/recaptcha/api/siteverify");
curl_setopt($verify, CURLOPT_POST, true);
curl_setopt($verify, CURLOPT_POSTFIELDS, http_build_query($secretdata));
curl_setopt($verify, CURLOPT_SSL_VERIFYPEER, false);
curl_setopt($verify, CURLOPT_RETURNTRANSFER, true);
$response = curl_exec($verify);
$status= json_decode($response, true);
if(empty($status['success'])){
return FALSE;
}else{
return TRUE;
}
}
the following is my register form function in same controller:
public function ajaxRegAction() {
$this->load->library('session');
header('Access-Control-Allow-Origin: *');
header('Access-Control-Allow-Methods: GET, POST, PATCH, PUT, DELETE, OPTIONS');
header('Access-Control-Allow-Headers: Origin, Content-Type, X-Auth-Token');
$this->load->library('form_validation');
$utype='W';
$dhamu = $this->validate_captcha();
$createddate = date('Y-m-d h:i:s');
$createdby = '0';
$mobile = $this->input->post('phone');
$form_data = array(
'type' => $utype,
'unique_id' => $this->mainModel->generateIndividualID(),
'phone_num' => $mobile,
'email' => $this->input->post('email'),
'first_name' => $this->input->post('firstname'),
'last_name' => $this->input->post('lastname'),
'created_by' => $createdby,
'created_date' => $createddate,
);
$name = $this->input->post('firstname')." ".$this->input->post('lastname');
$access_info = array('user_type'=>$utype);
$check = $this->mainModel->checkUserAvail($this->input->post('phone'),$this->input->post('email'));
$checkauser = $this->mainModel->checkAjaxUser($this->input->post('phone'),$this->input->post('email'));
if($check==0) {
if($dhamu==1){
$insert = $this->mainModel->ajaxRegInsertUser($form_data, $access_info,$this->input->post('password'));
$message="Dear ".$this->input->post('firstname').", You have successfully registered with Book The Party. Thank You for coming On-Board. Contact us at 9666888000 for any queries - Team BTP";
$email_message=$message;
$message=rawurlencode($message);
$this->mainModel->sendOtptoCustomer($mobile,$message);
$this->mainModel->sendmailtoCustomer($this->input->post('email'),$email_message);
echo "success";
}
else{ echo "Captcha Error";}
}
else{
echo "Registration Failed !";
}
even if i check the google recaptcha box and press register, the form is showing "Captcha Error", values are not being added to the database also. can anyone please tell me what could be wrong here, thanks in advance

Answer 1

Step 1:
Make sure you have added localhost in your domain in Google Captcha V2 dashboard.
Step 2:
I am modifying your function you can use it like this:
public function validate_captcha()
{
if(isset($_POST['g-recaptcha-response']))
{
$captcha=$_POST['g-recaptcha-response'];
}
$secretKey = "Put your secret key here";
$ip = $_SERVER['REMOTE_ADDR'];
// post request to server
$url = 'https://www.google.com/recaptcha/api/siteverify?secret=' . urlencode($secretKey) . '&response=' . urlencode($captcha);
$response = file_get_contents($url);
$responseKeys = json_decode($response,true);
// should return JSON with success as true
if($responseKeys["success"]) {
return TRUE;
} else {
return FALSE;
}
}
instead of CURL
Do let me know if this works