php - Recaptcha why doesn't this work? -

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i'm trying use no captcha recaptcha have issue. use code :

if(isset($_post['g-recaptcha-response'])){   $captcha=$_post['g-recaptcha-response']; } if(!$captcha){         $json['error'] = $this->language->get('error_captcha'); }      if (!isset($json['error'])) {         $this->model_catalog_review->addreview($this->request->get['product_id'], $this->request->post);          $json['success'] = $this->language->get('text_success');     } }

but error message if captcha filled out. how can fix this?


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