VIACEP did not find the cep variable to return to the result in PHP

Question

Hello,

Only the zip code search to find the city and state works, but the city and state search [and neighborhood] to find the zip code does not work because in JSON, the zip code variable ($result->cep) is within the keys of the numerical class and there is no city-state class.

Eis in PHP:

if ($_SERVER['REQUEST_METHOD'] === 'POST') 
{

 function webClient($url)
 {
     $ch = curl_init();

     curl_setopt($ch, CURLOPT_URL, $url);
     curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
     curl_setopt($ch, CURLOPT_FOLLOWLOCATION, 1);
     curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);

     $data = curl_exec($ch);

     curl_close($ch);

     return $data;
 }

 $descubra = $_POST['descubra'];

 switch ($descubra)
 {
  case "lugar":
   $cidade = $_POST['cidade'];
   $estado = $_POST['estado'];
   $bairro = $_POST['bairro'];
   $url = sprintf('https://viacep.com.br/ws/%s/%s/%s/json/ ', $estado, $cidade, $bairro);
   $result = json_decode(webClient($url));
   echo $result->cep;
   break;

  case "ceplocal":
   $cep    = $_POST['cep'];
   $url = sprintf('https://viacep.com.br/ws/%s/json/ ', $cep);
   $result = json_decode(webClient($url));
   echo $result->localidade;
   echo $result->uf;
   break;

  default:
    echo "Inválido!";
 }

}

Answer 1

Actually your code is working, note what the documentation says about searching by address:

The result will be ordered by the proximity of the street name and has a maximum limit of 50 (fifty) Zip Codes.

Then your search will pick up all the streets it contains X word, and will return a array, See the example below:

$cidade = 'Americana';
$estado = 'SP';
$bairro = 'Frezzarin';

You’ll get the return:

Array
(
    [0] => stdClass Object
        (
            [cep] => 13467-019
            [logradouro] => Praça José Frezzarin
            [complemento] => 
            [bairro] => Jardim São José
            [localidade] => Americana
            [uf] => SP
            [unidade] => 
            [ibge] => 3501608
            [gia] => 1650
        )

    [1] => stdClass Object
        (
            [cep] => 13465-789
            [logradouro] => Praça Marcílio Frezzarin
            [complemento] => 
            [bairro] => Vila Frezzarin
            [localidade] => Americana
            [uf] => SP
            [unidade] => 
            [ibge] => 3501608
            [gia] => 1650
        )
    ...
)

To use the echo must inform the index $result[0]->cep and so on.

You can see it working in repl it.