Call to undefined function getallheaders()

Hi Gioni,

I’ve enabled “Save request headers”, “Save $ SERVER” and “Save request cookies” options in Traffic Inspector and the following error pops up in error log:

PHP Fatal error:  Uncaught Error: Call to undefined function getallheaders() in .../wp-content/plugins/wp-cerber/cerber-load.php:4933
Stack trace:
#0 [internal function]: cerber_traffic_log()
#1 {main}
  thrown in .../wp-content/plugins/wp-cerber/cerber-load.php on line 4933

Judging from https://www.popmartian.com/tipsntricks/2015/07/14/howto-use-php-getallheaders-under-fastcgi-php-fpm-nginx-etc/ the problem is here:

If you use Nginx, PHP-FPM or any other FastCGI method of running PHP you’ve probably noticed that the function getallheaders() does not exist.

Indeed, the website that has this issue runs under PHP-FPM. A simple fix from the above article:

if (!function_exists('getallheaders')) {
    function getallheaders() {
    $headers = [];
    foreach ($_SERVER as $name => $value) {
        if (substr($name, 0, 5) == 'HTTP_') {
            $headers[str_replace(' ', '-', ucwords(strtolower(str_replace('_', ' ', substr($name, 5)))))] = $value;
        }
    }
    return $headers;
    }
}

Hope this helps 🙂