function GetIP() { if(!empty($_SERVER["HTTP_CLIENT_IP"])){ $cip = $_SERVER["HTTP_CLIENT_IP"]; }elseif(!empty($_SERVER["HTTP_X_FORWARDED_FOR"])){ $cip = $_SERVER["HTTP_X_FORWARDED_FOR"]; }elseif(!empty($_SERVER["REMOTE_ADDR"])){ $cip = $_SERVER["REMOTE_ADDR"]; }else{ $cip = ''; } preg_match("/[\d\.]{7,15}/", $cip, $cips); $cip = isset($cips[0]) ? $cips[0] : 'unknown'; unset($cips); return $cip; } 楼主用这个函数试试
$_SERVER['REMOTE_ADDR'] //当前用户 IP 。
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