function getIP(){
	static $realip;
	if (isset($_SERVER)){
		if (isset($_SERVER["HTTP_X_FORWARDED_FOR"])){
			$realip = $_SERVER["HTTP_X_FORWARDED_FOR"];
		} else if (isset($_SERVER["HTTP_CLIENT_IP"])) {
			$realip = $_SERVER["HTTP_CLIENT_IP"];
		} else {
			$realip = $_SERVER["REMOTE_ADDR"];
	} else {
		if (getenv("HTTP_X_FORWARDED_FOR")){
			$realip = getenv("HTTP_X_FORWARDED_FOR");
		} else if (getenv("HTTP_CLIENT_IP")) {
			$realip = getenv("HTTP_CLIENT_IP");
		} else {
			$realip = getenv("REMOTE_ADDR");
	return $realip;
echo getIP();


Author: 智宇愚

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