14 lines of PHP code to obtain the client's IP address, longitude, latitude and city

 $getIp=$_SERVER["REMOTE_ADDR"];
 echo 'IP:',$getIp;
 echo '';
 $content = file_get_contents("http ://api.map.baidu.com/location/ip?ak=7IZ6fgGEGohCrRKUE9Rj4TSQ&ip={$getIp}&coor=bd09ll");
 $json = json_decode($content);

 echo 'log:',$json- >{'content'}->{'point'}->{'x'};//Extract longitude data according to hierarchical relationship
 echo '';
 echo 'lat:', $json->{'content'}->{'point'}->{'y'};//Extract latitude data according to hierarchical relationship
 echo '';
 print $json ->{'content'}->{'address'};//Extract address data by hierarchical relationship
?>

PHP