Programmatically update ACF Google Maps fields

acf_google_maps.php

<?php

//You need an API key and an address (as a string) to geocode
//ACF Google Maps field data looks like:
/*
  array(
    'address' => '123 My Street, Mytown, Mycountry, Mypostcode',
    'lat' => '123.45678',
    'lng' => '-125.67890',
  )
*/

$api_key = 'YOUR_API_KEY_HERE';
$address = urlencode($address_string);
$post_id = 123;

$response = file_get_contents("https://maps.googleapis.com/maps/api/geocode/json?address=$address&key=$api_key");
$response = json_decode($response,true);

if(!empty($response['results'][0]['geometry']['location'])){

    $geo = $response['results'][0]['geometry']['location'];
    $formatted_address = $response['results'][0]['formatted_address'];
    $location = array('address' => $formatted_address, 'lat' => $geo['lat'], 'lng' => $geo['lng']);        
    update_field('YOUR_FIELD_KEY', $location, $post_id);
        
}

Supperb

Thank you, great time saved.

hey so the field is updating, i can see it when i var_dump the acf field but the address on the map in the backend isn't updating. how do i go about this?