PHP - Get county name by zip code

get_county_by_zip.php

<?php/**
 * Get county name by zip code
 *
 * @param  string|int $zip Zip code to lookup.
 * @return string $countyname Formatted county name.
 */
function get_county_by_zip( $zip ) {
	// google maps api.
	$url        = 'https://maps.googleapis.com/maps/api/geocode/json?address=' . $zip . '&key=AIzaSyC3TG7THSJjHbzDpYyQagJvWP-Inu6i33s';
	$response   = json_decode( file_get_contents( $url ), true );
	$countyname = ! empty( $response['results'][0]['address_components'][2]['long_name'] ) ? $response['results'][0]['address_components'][2]['long_name'] : '';
	$type       = ! empty( $response['results'][0]['address_components'][2]['types'][0] ) ? $response['results'][0]['address_components'][2]['types'][0] : '';

	// zip-codes.com api fallback.
	if ( 'administrative_area_level_2' !== $type ) {
		$url        = 'https://api.zip-codes.com/ZipCodesAPI.svc/1.0/QuickGetZipCodeDetails/' . $zip . '?key=VDVU3356B446IYE6FQON';
		$response   = json_decode( file_get_contents( $url ), true );
		$countyname = ! empty( $response['County'] ) ? $response['County'] : '';
	}

	// format county name to match database counties.
	$countyname = str_replace( 'Saint', 'St.', str_replace( ' County', '', ucwords( strtolower( $countyname ) ) ) );
	return $countyname;
}