How to extract Postal code from V3 Google maps API

Question

I am using the following to get a the lat-lng from a geocode..

  $latitude = $output->results[0]->geometry->location->lat;
  $longitude = $output->         


        

Answer 1

I'd say you'd need to loop through results.address_components. On each iteration check if the types array contains "postal_code". If it does, save that to a variable, and probably break out of the loop as well. Although it might be worth investigating to see if the postal_code is always in address_component[5], which would save you having to loop.

Answer 2

You could use the following function to extract any address component:

function extractFromAdress(components, type){
    for (var i=0; i<components.length; i++)
        for (var j=0; j<components[i].types.length; j++)
            if (components[i].types[j]==type) return components[i].long_name;
    return "";
}

To extract the postal code you call:

extractFromAdress(results[0].address_components, "postal_code");

But you could also get other interesting info like:

extractFromAdress(results[0].address_components, "route");
extractFromAdress(results[0].address_components, "locality");
extractFromAdress(results[0].address_components, "country");

etc...