如何使用PHP查询IP地址归属地

//接口请求Key，可以通过https://www.juhe.cn/docs/api/id/1免费申请开通
$appkey="*********************";

//根据免费云主机域名查询的IP地址，查询该IP所属的区域
$url="http://apis.juhe.cn/ip/ipNew";
$params=[
"ip"=>"112.112.11.11",//需要查询的IP地址或域名
"key"=>$appkey,//应用APPKEY(应用详细页查询)
];
$paramstring=http_build_query($params);
$content=juheHttpRequest($url,$paramstring,1);
$result=json_decode($content,true);
if($result){
if($result['error_code']==0){
echo"国家：{$result['result']['Country']}".PHP_EOL;
echo"省份：{$result['result']['Province']}".PHP_EOL;
echo"城市：{$result['result']['City']}".PHP_EOL;
echo"运营商：{$result['result']['Isp']}".PHP_EOL;
}else{
echo"{$result['error_code']}:{$result['reason']}".PHP_EOL;
}
}else{
echo"请求失败";
}

/**
*请求接口返回内容
*@paramstring$url[请求的URL地址]
*@paramstring$params[请求的参数]
*@paramint$ipost[是否采用POST形式]
*@returnstring
*/
functionjuheHttpRequest($url,$params=false,$ispost=0)
{
$httpInfo=array();
$ch=curl_init();

curl_setopt($ch,CURLOPT_HTTP_VERSION,CURL_HTTP_VERSION_1_1);
curl_setopt($ch,CURLOPT_USERAGENT,'JuheData');
curl_setopt($ch,CURLOPT_CONNECTTIMEOUT,3);
curl_setopt($ch,CURLOPT_TIMEOUT,5);
curl_setopt($ch,CURLOPT_RETURNTRANSFER,true);
curl_setopt($ch,CURLOPT_FOLLOWLOCATION,true);
if($ispost){
curl_setopt($ch,CURLOPT_POST,true);
curl_setopt($ch,CURLOPT_POSTFIELDS,$params);
curl_setopt($ch,CURLOPT_URL,$url);
}else{
if($params){
curl_setopt($ch,CURLOPT_URL,$url.'?'.$params);
}else{
curl_setopt($ch,CURLOPT_URL,$url);
}
}
$response=curl_exec($ch);
if($response===FALSE){
//echo"cURLError:".curl_error($ch);
returnfalse;
}
$httpCode=curl_getinfo($ch,CURLINFO_HTTP_CODE);
$httpInfo=array_merge($httpInfo,curl_getinfo($ch));
curl_close($ch);
return$response;
}