LcShopBundle/ShopBundle/Services/CityUtils.php

<?php

namespace Lc\ShopBundle\Services ;

class CityUtils
{

        function callApi($method, $url, $data = false)
        {
                $url = 'https://geo.api.gouv.fr/'.$url ;
                $curl = curl_init();

                switch ($method)
                {
                        case "POST":
                                curl_setopt($curl, CURLOPT_POST, 1);

                                if ($data)
                                        curl_setopt($curl, CURLOPT_POSTFIELDS, $data);
                                break;
                        case "PUT":
                                curl_setopt($curl, CURLOPT_PUT, 1);
                                break;
                        default:
                                if ($data)
                                        $url = sprintf("%s?%s", $url, http_build_query($data));
                }

                // Optional Authentication:
                curl_setopt($curl, CURLOPT_HTTPAUTH, CURLAUTH_BASIC);
                curl_setopt($curl, CURLOPT_USERPWD, "username:password");

                curl_setopt($curl, CURLOPT_URL, $url);
                curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1);

                $result = curl_exec($curl);

                curl_close($curl);

                return $result;
        }

        public function getZipByCity($city)
        {
                $zip = null ;
                $returnCitiesSearchZip = json_decode($this->callApi('get', 'communes', ['nom' => $city, 'fields' => 'nom,codesPostaux'])) ;

                if($returnCitiesSearchZip) {
                        foreach($returnCitiesSearchZip as $citySearchZip) {
                                if(strtolower(trim($city)) == strtolower(trim($citySearchZip->nom))) {
                                        $zip = $citySearchZip->codesPostaux[0] ;
                                }
                        }
                }

                return $zip ;
        }
}