螺丝帽的php端验证验证码

//验证码

$luosimao_response=$_POST['luosimao_response'];
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, "https://captcha.luosimao.com/api/site_verify");

curl_setopt($ch, CURLOPT_HTTP_VERSION  , CURL_HTTP_VERSION_1_0 );
curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, 8);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, TRUE);
curl_setopt($ch, CURLOPT_HEADER, FALSE);

curl_setopt($ch, CURLOPT_HTTPAUTH , CURLAUTH_BASIC);
//curl_setopt($ch, CURLOPT_USERPWD  , "api:{$appr[appid]}");

curl_setopt($ch, CURLOPT_POST, TRUE);
curl_setopt($ch, CURLOPT_POSTFIELDS, array('api_key' => "{$appr[appkey]}",'response' =>$luosimao_response));

$res = curl_exec( $ch );
curl_close( $ch );
//Array ( [error] => 0 [res] => success )
$res=json_decode($res,true);
if($res['res']!='success')printerror2('验证码错误','/e/member/register/');

螺丝帽，帝国cms ，php服务器端，验证验证码是否正确。