/**
* Gets the External IP using an external service, it is cached
*
* @param bool $force default false, force IP check even when cached
*
* @return string
*/
public static function getIP($force = false)
{
if (Utils::$online === false) {
return false;
} elseif (Utils::$ip !== false and $force !== true) {
return Utils::$ip;
}
$ip = trim(strip_tags(Utils::getURL("http://checkip.dyndns.org/")));
if (preg_match('#Current IP Address\\: ([0-9a-fA-F\\:\\.]*)#', $ip, $matches) > 0) {
Utils::$ip = $matches[1];
} else {
$ip = Utils::getURL("http://www.checkip.org/");
if (preg_match('#">([0-9a-fA-F\\:\\.]*)</span>#', $ip, $matches) > 0) {
Utils::$ip = $matches[1];
} else {
$ip = Utils::getURL("http://checkmyip.org/");
if (preg_match('#Your IP address is ([0-9a-fA-F\\:\\.]*)#', $ip, $matches) > 0) {
Utils::$ip = $matches[1];
} else {
$ip = trim(Utils::getURL("http://ifconfig.me/ip"));
if ($ip != "") {
Utils::$ip = $ip;
} else {
return false;
}
}
}
}
return Utils::$ip;
}
