Get country, province, city, and peripheral data by using PHP based on geographic coordinates

function: when the app obtains the user's geographic coordinates, it can know what data the user is currently in that country, province, city, and periphery according to the coordinates.

principle: based on Baidu Geocoding API Implementation, need to first register Baidu Developer, and then apply for Baidu AK (key)
Geocoding.class.php

<?php/** * Base coordinates to obtain the country, province, city, and the surrounding data class (using Baidu geocoding API implementation) * Baidu Key acquisition method: Http://lbsyun.baidu.com/apiconsole/key?  Application=key (need to register Baidu Developer account first) * date:2015-07-30 * author:fdipzone * ver:1.0 * * Func: * Public getaddresscomponent Get country, province, city and peripheral data by address * Private Tocurl using Curl call Baidu Geocoding API */class Geocoding {//Baidu Geocoding API Co    NST API = ' http://api.map.baidu.com/geocoder/v2/';    Do not display peripheral data const No_pois = 0;     Display peripheral Data Const POIS = 1;  /** * Base site for country, province, city and surrounding data * @param String $ak Baidu AK (Key) * @param Decimal $longitude Longitude * @param Decimal $latitude latitude * @param Int $pois Show Peripheral Data * @return Array */public static function GetAd                Dresscomponent ($ak, $longitude, $latitude, $pois =self::no_pois) {$param = array (' ak ' = = $ak,                ' Location ' =-implode (', ', Array ($latitude, $longitude)), ' pois ' = $pois,    ' Output ' = ' json ');    Request Baidu API $response = Self::tocurl (Self::api, $param);        $result = Array ();        if ($response) {$result = Json_decode ($response, true);    } return $result;  /** * Use Curl to invoke the Baidu geocoding API * @param String $url The requested address * @param Array $param The requested parameter * @return        JSON */private static function Tocurl ($url, $param =array ()) {$ch = Curl_init (); if (substr ($url, 0,5) = = ' https ') {curl_setopt ($ch, Curlopt_ssl_verifypeer, false);//Skip certificate Check Curl_setop  T ($ch, Curlopt_ssl_verifyhost, true);        Check the existence of the SSL encryption algorithm from the certificate} curl_setopt ($ch, Curlopt_returntransfer, true);        curl_setopt ($ch, Curlopt_url, $url);        curl_setopt ($ch, Curlopt_post, true);        curl_setopt ($ch, Curlopt_postfields, Http_build_query ($param));        $response = curl_exec ($ch);        if ($error =curl_error ($ch)) {return false;        } curl_close ($ch);    return $response; }}?>

demo.php

<?phprequire "Geocoding.class.php"; $ak = ' Write your Baidu AK here '; $longitude = 113.327782; $latitude = 23.137202; $result = Geocoding::getaddresscomponent ($ak, $longitude, $latitude, Geocoding::no_pois), Echo ' <pre> ';p rint_r ($result) ; Echo ' </pre> ';? >

Example returns:

array ([status] = 0 [result] = = Array ([location] =& Gt                Array ([LNG] = 113.32778195925 [lat] = 23.137201991056 ) [formatted_address] = 35th West Heng Road, Guangzhou Tianhe District, Guangdong Province [Business] = Tianhe City, sports Center, Shahe [add                    Resscomponent] = Array ([City] = Guangzhou [country] = China                    [Direction] = near [distance] [district] = Tianhe District                    [Province] = Guangdong Province [Street] + sports West Heng Jie [street_number] = 35th                [Country_code] = 0) [Poiregions] = = Array ( ) [sematic_description] = Red Shield building North 58 m [Citycode] = 257)) 

This article explains the use of PHP according to geographical coordinates to obtain the country, province, city, and surrounding data categories, more relevant content please pay attention to the PHP Chinese web.

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