向進之
function get_client_ip() {
if (getenv("HTTP_CLIENT_IP") && strcasecmp(getenv("HTTP_CLIENT_IP"), "unknown"))
$ip = getenv("HTTP_CLIENT_IP");
else if (getenv("HTTP_X_FORWARDED_FOR") && strcasecmp(getenv("HTTP_X_FORWARDED_FOR"), "unknown"))
$ip = getenv("HTTP_X_FORWARDED_FOR");
else if (getenv("REMOTE_ADDR") && strcasecmp(getenv("REMOTE_ADDR"), "unknown"))
$ip = getenv("REMOTE_ADDR");
else if (isset($_SERVER ['REMOTE_ADDR']) && $_SERVER ['REMOTE_ADDR'] && strcasecmp($_SERVER ['REMOTE_ADDR'], "unknown"))
$ip = $_SERVER ['REMOTE_ADDR'];
else
$ip = "unknown";
return ($ip);
}
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