当reCaptcha输入正确时，代码无效

Question

I am trying to implement Google's reCaptcha on my website's query form in php.

When the CAPTCHA is entered incorrectly,
I get: "No. CAPTCHA is not entered correctly".

But when the CAPTCHA is entered correctly,
What I expect: "Everything looks good" OR "CAPTCHA is correct but other values are incorrect."
What I get: Blank Page

Here is how I am implementing it:

$var1 = $_POST["var1"];
$var2 = $_POST["var2"];

require_once('recaptchalib.php');
    $privatekey = "<private key I got from reCaptcha>";
    $respCaptcha = recaptcha_check_answer ($privatekey,
                                $_SERVER["REMOTE_ADDR"],
                                $_POST["recaptcha_challenge_field"],
                                $_POST["recaptcha_response_field"]);

if(!$respCaptcha->is_valid) {
    echo "No. CAPTCHA is not entered correctly";

} elseif(    is_numeric($var1) 
          && preg_match("/^[a-zA-Z ]*$/",$var2)) {        
    echo "Everything looks good";

} else {

    echo "CAPTCHA is correct but other values are incorrect.";

}

Please help. What am I doing wrong here?

Answer 1

Try putting the if just inside the else...

Also is this directly pasted because the line

'Do something...' is not commented