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获得客户端内网、外网的ip

1、获得外网的ip代码 

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、获得内网的ip的代码

  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;
}

获得客户端内网、外网的ip