PHP - 从地址获取纬度和经度
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PHP - Get Latitude & Longitude from an address
提问by khan Asim
I have used the autocomplete of geocode but when I am selecting from the drop down it is giving me the lat and long of the address
我使用了地理编码的自动完成功能，但是当我从下拉列表中进行选择时，它给了我地址的经纬度
I need to check when the lat and long are empty then from the posted address I must get the latitude and longitude
我需要检查纬度和经度何时为空然后从发布的地址我必须得到纬度和经度
回答by sandipshirsale
suppose you have hidden value for lat and long is mapLat & mapLong and input field name is location then you can check as below
假设您有 lat 和 long 的隐藏值是 mapLat & mapLong 并且输入字段名称是位置，那么您可以检查如下
<html>
<form>
<input type="hidden" name="mapLat">
<input type="hidden" name="mapLong">
<input type="text" name="location">
<input type="submit" name="submit" value="submit">
</form>
</html>
extact($_POST);
if($mapLat =='' && $mapLong ==''){
// Get lat long from google
$latlong = get_lat_long($location); // create a function with the name "get_lat_long" given as below
$map = explode(',' ,$latlong);
$mapLat = $map[0];
$mapLong = $map[1];
}
// function to get the address
function get_lat_long($address){
$address = str_replace(" ", "+", $address);
$json = file_get_contents("http://maps.google.com/maps/api/geocode/json?address=$address&sensor=false®ion=$region");
$json = json_decode($json);
$lat = $json->{'results'}[0]->{'geometry'}->{'location'}->{'lat'};
$long = $json->{'results'}[0]->{'geometry'}->{'location'}->{'lng'};
return $lat.','.$long;
}
回答by Mukesh Chapagain
UsingCURL
使用卷曲
<?php
$address = "Kathmandu, Nepal";
$url = "http://maps.google.com/maps/api/geocode/json?address=".urlencode($address);
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
$responseJson = curl_exec($ch);
curl_close($ch);
$response = json_decode($responseJson);
if ($response->status == 'OK') {
$latitude = $response->results[0]->geometry->location->lat;
$longitude = $response->results[0]->geometry->location->lng;
echo 'Latitude: ' . $latitude;
echo '<br />';
echo 'Longitude: ' . $longitude;
} else {
echo $response->status;
var_dump($response);
}
?>
回答by Govinda Yadav
Try This for getting the address
试试这个来获取地址
<?
function getaddress($lat,$lng)
{
$url = 'http://maps.googleapis.com/maps/api/geocode/json?latlng='.trim($lat).','.trim($lng).'&sensor=false';
$json = @file_get_contents($url);
$data=json_decode($json);
$status = $data->status;
if($status=="OK")
return $data->results[0]->formatted_address;
else
return false;
}
$lat= 26.754347; //latitude
$lng= 81.001640; //longitude
$address= getaddress($lat,$lng);
if($address)
{
echo $address;
}
else
{
echo "Not found";
}
?>回答by banarsiamin
// We define our address
$address = 'Indore, MP 452001';
echo"<PRE>";
print_r(get_lat_long($address));
// function to get the address
function get_lat_long($address) {
$array = array();
$geo = file_get_contents('http://maps.googleapis.com/maps/api/geocode/json?address='.urlencode($address).'&sensor=false');
// We convert the JSON to an array
$geo = json_decode($geo, true);
// If everything is cool
if ($geo['status'] = 'OK') {
$latitude = $geo['results'][0]['geometry']['location']['lat'];
$longitude = $geo['results'][0]['geometry']['location']['lng'];
$array = array('lat'=> $latitude ,'lng'=>$longitude);
}
return $array;
}
回答by FahadKhan
I tried above solutions but none was working then i tried to fix on my own so below is the correct code:
我尝试了上面的解决方案，但没有一个工作然后我尝试自己修复所以下面是正确的代码：
$going=$this->input->post('going');
$address =$going; // Google HQ
$prepAddr = str_replace(' ','+',$address);
$apiKey = 'Add your API Key'; // Google maps now requires an API key.
$geocode=file_get_contents('https://maps.googleapis.com/maps/api/geocode/json?
address='.urlencode($address).'&sensor=false&key='.$apiKey);
//print_r($geocode);
$output= json_decode($geocode);
$latitude = $output->results[0]->geometry->location->lat;
$longitude = $output->results[0]->geometry->location->lng;
