php通过IP获取访问来自哪个国家

试试这个简单的PHP函数。

function ip_info($ip = NULL,$purpose = "location",$deep_detect = TRUE) {

$output = NULL;

if (filter_var($ip,FILTER_VALIDATE_IP) === FALSE) {

$ip = $_SERVER["REMOTE_ADDR"];

if ($deep_detect) {

if (filter_var(@$_SERVER['HTTP_X_FORWARDED_FOR'],FILTER_VALIDATE_IP))

$ip = $_SERVER['HTTP_X_FORWARDED_FOR'];

if (filter_var(@$_SERVER['HTTP_CLIENT_IP'],FILTER_VALIDATE_IP))

$ip = $_SERVER['HTTP_CLIENT_IP'];

}

}

$purpose = str_replace(array("name","n","t"," ","-","_"),NULL,strtolower(trim($purpose)));

$support = array("country","countrycode","state","region","city","location","address");

$continents = array(

"AF" => "Africa",

"AN" => "Antarctica",

"AS" => "Asia",

"EU" => "Europe",

"OC" => "Australia (Oceania)",

"NA" => "North America",

"SA" => "South America"

);

if (filter_var($ip,FILTER_VALIDATE_IP) && in_array($purpose,$support)) {

$ipdat = @json_decode(file_get_contents("http://www.geoplugin.net/json.gp?ip=" . $ip));

if (@strlen(trim($ipdat->geoplugin_countryCode)) == 2) {

switch ($purpose) {

case "location":

$output = array(

"city" => @$ipdat->geoplugin_city,

"state" => @$ipdat->geoplugin_regionName,

"country" => @$ipdat->geoplugin_countryName,

"country_code" => @$ipdat->geoplugin_countryCode,

"continent" => @$continents[strtoupper($ipdat->geoplugin_continentCode)],

"continent_code" => @$ipdat->geoplugin_continentCode

);

break;

case "address":

$address = array($ipdat->geoplugin_countryName);

if (@strlen($ipdat->geoplugin_regionName) >= 1)

$address[] = $ipdat->geoplugin_regionName;

if (@strlen($ipdat->geoplugin_city) >= 1)

$address[] = $ipdat->geoplugin_city;

$output = implode(",",array_reverse($address));

break;

case "city":

$output = @$ipdat->geoplugin_city;

break;

case "state":

$output = @$ipdat->geoplugin_regionName;

break;

case "region":

$output = @$ipdat->geoplugin_regionName;

break;

case "country":

$output = @$ipdat->geoplugin_countryName;

break;

case "countrycode":

$output = @$ipdat->geoplugin_countryCode;

break;

}

}

}

return $output;

}

?>

如何使用：

示例1：获取访客IP地址详细信息

echo ip_info("Visitor","Country"); // India

echo ip_info("Visitor","Country Code"); // IN

echo ip_info("Visitor","State"); // Andhra Pradesh

echo ip_info("Visitor","City"); // Proddatur

echo ip_info("Visitor","Address"); // Proddatur,Andhra Pradesh,India

print_r(ip_info("Visitor","Location")); // Array ( [city] => Proddatur [state] => Andhra Pradesh [country] => India [country_code] => IN [continent] => Asia [continent_code] => AS )

?>

示例2：获取任何IP地址的详细信息。[支持IPV4和IPV6]

echo ip_info("173.252.110.27","Country"); // United States

echo ip_info("173.252.110.27","Country Code"); // US

echo ip_info("173.252.110.27","State"); // California

echo ip_info("173.252.110.27","City"); // Menlo Park

echo ip_info("173.252.110.27","Address"); // Menlo Park,California,United States

print_r(ip_info("173.252.110.27","Location")); // Array ( [city] => Menlo Park [state] => California [country] => United States [country_code] => US [continent] => North America [continent_code] => NA )

?>

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