ygotthilf

ssh-keygen -t rsa -b 4096 -m PEM -f jwtRS256.key
# Don't add passphrase
openssl rsa -in jwtRS256.key -pubout -outform PEM -out jwtRS256.key.pub
cat jwtRS256.key
cat jwtRS256.key.pub

olimortimer

<?php

	function cidr_match($ip) {

		foreach(file('https://www.cloudflare.com/ips-v4') as $cidr) {

			list($subnet, $mask) = explode('/', $cidr);

			if ((ip2long($ip) & ~((1 << (32 - $mask)) - 1) ) == ip2long($subnet)) {
				return true;

rolandinsh

function get_smc_dnt() {
/*
* Do Not Track for privacy.
* When this feature is enabled, webpage should exclude all tracking tools,
* like Google Analytic and advertising networks
*/
// returns TRUE if DNT is on and is equal to 1,
// returns FALSE if DNT is unset OR not equal to 1
  return (isset($_SERVER['HTTP_DNT']) && $_SERVER['HTTP_DNT'] == 1);
}