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I have a site that requires to search for lat long information before been saved / updated a member profile, this is searched from google on reverse geolocation through a custom file name location.

I am not looking the function on solve that, I ma looking way on hook the function

Any suggest on how to solve that?

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Hm, are you sure you want to do this before update? Why exactly? It is usually easy in WP inserts to hook right after it happened, but right before is challenging. – Rarst Jan 6 '14 at 22:22
Cause I need user enter some location info and then make a map for all users, then I will need a latlong key pair for display positions on a map – Carlos Jan 7 '14 at 0:17
I am sorry, that doesn't quite explain to me why before rather than after matters. Maybe you could provide your data flow for this step by step? – Rarst Jan 7 '14 at 0:53

you can use something like this

 *  Get City state from zipcode
function rtp_get_city_state($location) {

    $details_url = 'http://maps.google.com/maps/api/geocode/json?address='.$location.'&sensor=false';

    $ch = curl_init();
    curl_setopt($ch, CURLOPT_URL, $details_url);
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
    $response = json_decode(curl_exec($ch), true);

    if ($response['status'] != 'OK') {
        return null;

share|improve this answer
Sure, I though, my question is no clear, the question is how to hook it before update / save memeber. I have not found that – Carlos Jan 6 '14 at 12:43

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