Posted data to Curl having issues - No response from curl - php

Question

I am trying to implement spam checks for websites, Like I have website A,B,C,D... I am creating a centralized spam check filter say xyz.com/spamcheck.php
I am using CURL to post the data from website A to xyz.com/spamcheck.php
and in my spamcheck.php I am using Akismet Fuspam library to validate it and return the response back to my website A, based on the response from my spamcheck i will decide to send mail or discard.
So far i am not able to post values to my spamcheck.php through CURL and get response back from it.
// DATA PROCESSING
$data = array();
$data['ip'] = get_client_ip();
$data['user_agent'] = $_SERVER['HTTP_USER_AGENT'];
$data['referrer'] = $_SERVER['HTTP_REFERER'];
$data['comment_author'] = $_POST['first_name'];
$data['comment_author_email'] = $_POST['email'];
$data['comment_content'] = $_POST['message'];
$params = json_encode($data);
$url = "https://www.my-spam-check-url.com/spamcheck.php";
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true);
curl_setopt($ch, CURLOPT_POST, 1);
curl_setopt($ch, CURLOPT_POSTFIELDS, $params);
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, 0); // On dev server only!
$spamResult = curl_exec($ch);
curl_close($ch);
$spamResult = json_decode($spamResult,true);
print_r($spamResult);
I expect the output to be TRUE or FALSE. I am getting Blank response
spamcheck.php
// Include Akismet F-U-Spam function.
include 'includes/akismet.fuspam.php';
// Function to get the client IP address
function get_client_ip() {
$ipaddress = '';
if (isset($_SERVER['HTTP_CLIENT_IP']))
$ipaddress = $_SERVER['HTTP_CLIENT_IP'];
else if(isset($_SERVER['HTTP_X_FORWARDED_FOR']))
$ipaddress = $_SERVER['HTTP_X_FORWARDED_FOR'];
else if(isset($_SERVER['HTTP_X_FORWARDED']))
$ipaddress = $_SERVER['HTTP_X_FORWARDED'];
else if(isset($_SERVER['HTTP_FORWARDED_FOR']))
$ipaddress = $_SERVER['HTTP_FORWARDED_FOR'];
else if(isset($_SERVER['HTTP_FORWARDED']))
$ipaddress = $_SERVER['HTTP_FORWARDED'];
else if(isset($_SERVER['REMOTE_ADDR']))
$ipaddress = $_SERVER['REMOTE_ADDR'];
else
$ipaddress = 'UNKNOWN';
return $ipaddress;
}
/*API KEY - 123XYZ*/
$comment = array();
$key = "123XYZ";
$type = "check-spam";
/* Get Posted Data from website */
$postedIp = $data['ip'];
$postedUserAgent = $data['user_agent'];
$postedReferrer = $data['referrer'];
$postedcomment_author = $data['comment_author'];
$postedcomment_author_email = $data['comment_author_email'];
$postedcomment_content = $data['comment_content'] ;
/* Data Processing End */
if(empty($postedIp) || $postedIp == 'UNKNOWN' || $postedIp == ''){
$ip = get_client_ip();
}
if(empty($postedUserAgent) || $postedUserAgent == ''){
$user_agent = $_SERVER['HTTP_USER_AGENT'];
}
if(empty($postedReferrer) || $postedReferrer == ''){
$referrer = $_SERVER['HTTP_REFERER'];
}
$permalink = $blog = $authUrl = "https://www.example.net/";
$comment['blog'] = $blog;
$comment['user_ip'] = $ip;
$comment['user_agent'] = $user_agent;
$comment['referrer'] = $referrer;
$comment['permalink'] = $permalink;
$comment['comment_type'] = "ContactUs";
$comment['comment_author'] = $postedcomment_author;
$comment['comment_author_email'] = $postedcomment_author_email;
$comment['comment_author_url'] = $authUrl;
$comment['comment_content'] = $postedcomment_content;
$spamCheckResult = fuspam( $comment , $type , $key );
echo $spamCheckResult;

Answer 1

I am looking at your code, I cant be sure if print_r is how you are checking but if so, keep in mind that:
print_r(true) will output 1, while print_r(false) will output "", blank.
Maybe use var_dump instead for debugging?
BR

Answer 2

If your spamcheck.php is working as per your written code than before echo in last use ob_clean();. so i will remove space or any other before return your actual result.