PHP gets national, provincial, city, and peripheral data 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

 
       /** * 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 surrounding data by address * Private Tocurl use curl to call Baidu geocoding API
  */ classGeocoding {//Baidu geocoding APIConstAPI =' http://api.map.baidu.com/geocoder/v2/';//Do not display peripheral dataConstNo_pois =0;//Show Peripheral DataConstPOIS =1;/** * Base site for country, province, city and surrounding data * @param String $ak Baidu AK (Key) * @param Decimal $longi Tude Longitude * @param Decimal $latitude latitude * @param Int $pois Show Peripheral data * @return /c6> Array * / PublicStatic functiongetaddresscomponent($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 call Baidu geocoding API * @param String $url requested address * @param Array $param Request The parameters * @return JSON */PrivateStatic functiontocurl($url, $param=array()){$ch= Curl_init ();if(Substr ($url,0,5)==' https ') {curl_setopt ($ch, Curlopt_ssl_verifypeer,false);//Skip certificate Checkcurl_setopt ($ch, Curlopt_ssl_verifyhost,true);//Check whether the SSL encryption algorithm exists from the certificate} curl_setopt ($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 ($ch)){returnfalse; } curl_close ($ch);return$response; }}?>

demo.php

   
    require"Geocoding.class.php";$ak = '这里填写你的百度AK';$longitude = 113.327782;$latitude = 23.137202;$result = Geocoding::getAddressComponent($ak, $longitude, $latitude, Geocoding::NO_POIS);echo'
';print_r($result);echo'
';?>

Example returns:

Array([Status] =0[result] = =Array([location] = =Array([LNG] =113.32778195925[Lat] =23.137201991056) [formatted_address] = Guangzhou Tianhe District sports West Heng Jie, Guangdong province *No. [Business] = Tianhe City, sports Center, Shahe [Addresscomponent] =Array([City] = Guangzhou [Country] = China [direction] = near [Distance] = -[district] = Tianhe District [province] = Guangdong Province [Street] + sports West Heng Jie [s Treet_number] = *Number [Country_code] =0) [Poiregions] =Array() [sematic_description] = Red Shield building North -m [Citycode] =257))

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The above describes the PHP based on geographical coordinates to obtain the country, province, city, and surrounding data classes, including the content, I hope to be interested in the PHP tutorial friends helpful.

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