PHP foreach update custom field - php

Question

I use ACF Pro google maps.
The Plugin stores the map data in an array. So far so good.
Now, I like to run through the array and directly store the date in new custom fields.
This works, but I like to give the fields my own name, not the names from the ARRAY (lat & lng).
Can anyone explain how I can use my own names for the custom fields spot_lat & spot_lng?
function my_copy_date_filter($post_id)
{
$post_type = get_post_type($post_id);
if ($post_type != 'spot') {
return;
}
$date = get_field('spot_location', $post_id);
if ($date) {
$lat_lng = [];
foreach (array('lat', 'lng') as $i => $k) {
if (isset($date[$k])) {
update_post_meta($post_id, $k, $date[$k]);
}
}
}
}
add_filter('acf/save_post', 'my_copy_date_filter', 20);
Thanks for any suggestion,
Denis

Answer 1

Create 2 new acf fields named spot_lat and spot_lng
Then try this code
function my_copy_date_filter($post_id) {
$post_type = get_post_type($post_id);
if ($post_type != 'spot') {
return;
}
$date = get_field('spot_location', $post_id);
if( $date ) {
update_field( 'spot_lat', $date[ 'lat' ], $post_id );
update_field( 'spot_lng', $date[ 'lng' ], $post_id );
}
}
add_filter('acf/save_post', 'my_copy_date_filter', 20);