獲得用戶端內網、外網的ip

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1、獲得外網的ip代碼 

function get_online_ip() {

    $onlineip = ‘‘;    if(getenv(‘HTTP_CLIENT_IP‘) && strcasecmp(getenv(‘HTTP_CLIENT_IP‘), ‘unknown‘)) {        $onlineip = getenv(‘HTTP_CLIENT_IP‘);    } elseif(getenv(‘HTTP_X_FORWARDED_FOR‘) && strcasecmp(getenv(‘HTTP_X_FORWARDED_FOR‘), ‘unknown‘)) {        $onlineip = getenv(‘HTTP_X_FORWARDED_FOR‘);    } elseif(getenv(‘REMOTE_ADDR‘) && strcasecmp(getenv(‘REMOTE_ADDR‘), ‘unknown‘)) {        $onlineip = getenv(‘REMOTE_ADDR‘);    } elseif(isset($_SERVER[‘REMOTE_ADDR‘]) && $_SERVER[‘REMOTE_ADDR‘] && strcasecmp($_SERVER[‘REMOTE_ADDR‘], ‘unknown‘)) {        $onlineip = $_SERVER[‘REMOTE_ADDR‘];    }    return $onlineip;}

2、獲得內網的ip的代碼

  function getClientIP()

{$client_ip = null;
if (getenv("HTTP_CLIENT_client_ip")){$client_ip = getenv("HTTP_CLIENT_client_ip");}else if (getenv("HTTP_X_FORWARDED_FOR")){$client_ip = getenv("HTTP_X_FORWARDED_FOR");}else if (getenv("REMOTE_ADDR")){$client_ip = getenv("REMOTE_ADDR");}else{$client_ip = null;}
return $client_ip;}

獲得用戶端內網、外網的ip