Bravo List - undefined function gmp

Fatal error: Call to undefined function gmp_strval() in /var/www/html/backend/functions.php on line 1792

1792 line is return gmp_strval(gmp_init($ipv6long,2),10);

Code:

// Taken from php.net comments

function ip2long6($ipv6) {

  $ip_n = inet_pton($ipv6);

  $bits = 15; // 16 x 8 bit = 128bit

  while ($bits >= 0) {

    $bin = sprintf("%08b",(ord($ip_n[$bits])));

    $ipv6long = $bin.$ipv6long;

    $bits--;

  }

  return gmp_strval(gmp_init($ipv6long,2),10);

}



function long2ip6($ipv6long) {



  $bin = gmp_strval(gmp_init($ipv6long,10),2);

  if (strlen($bin) < 128) {

    $pad = 128 - strlen($bin);

    for ($i = 1; $i <= $pad; $i++) {

    $bin = "0".$bin;

    }

  }

  $bits = 0;

  while ($bits <= 7) {

    $bin_part = substr($bin,($bits*16),16);

    $ipv6 .= dechex(bindec($bin_part)).":";

    $bits++;

  }

  // compress



  return inet_ntop(inet_pton(substr($ipv6,0,-1)));

}

hello how can i resolve this error

Bump: Fix IT this problem was from CLOUDFLARE

Account Cloudflare Pseudo IPv4
Adds an IPv4 header to requests when a client is using IPv6, but the server only supports IPv4. was OFF

Attention

Thanks Extremlym For Letting Us Know