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Problem:

Query a page on another site, passing parameters via POST and getting the result in PHP.

I have the following website:

  

link

In the console when a search is done the following parameters appear: 

EDR
Inicio

Is there a PHP command where you make POST to any page and it downloads from that page?

    
asked by anonymous 25.02.2015 / 17:47

1 answer

2

You can send a request of POST using cURL ;

First Step

Let's check if it is installed, in your php.ini check this line: 

;extension=php_curl.dll

If it is commented out, take out ; .

Basic Usage 

  // Inicializamos o cURL informando um site;
  $requisicao = curl_init('www.seusite.com.br');
  // Definimos que deverá retornar o resultado;
  curl_setopt($requisicao, CURLOPT_RETURNTRANSFER, true);
  //Executa e salva o conteúdo na variável;
  $resultado = curl_exec($requisicao);
  // Encerramos a conexão;
  curl_close($requisicao);

Using POST 

  // 'Input' => 'Valor'
  $parametros = [
    'id' => 1,
    'relacao_id' => 234
  ];
  // Setamos POST como true
  curl_setopt($requisicao, CURLOPT_POST, true);
  // Parâmetros que serão enviados pelo POST [array]
  curl_setopt($requisicao, CURLOPT_POSTFIELDS, $parametros);

Source: link

Example of cURL reporting headers to retrieve the captcha from the IRS website: 

$ch = curl_init("http://www.receita.fazenda.gov.br/aplicacoes/atcta/cpf/captcha/gerarCaptcha.asp");
$options = [
    CURLOPT_COOKIEJAR => 'cookiejar',
    CURLOPT_HTTPHEADER => [
        "Pragma: no-cache",
        "Origin: http://www.receita.fazenda.gov.br",
        "Host: www.receita.fazenda.gov.br",
        "User-Agent: Mozilla/5.0 (Windows NT 6.1; rv:32.0) Gecko/20100101 Firefox/32.0",
        "Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8",
        "Accept-Language: pt-BR,pt;q=0.8,en-US;q=0.5,en;q=0.3",
        "Accept-Encoding: gzip, deflate",
        "Referer: http://www.receita.fazenda.gov.br/aplicacoes/atcta/cpf/ConsultaPublica.asp",
        "Cookie: $cookie",
        "Connection: keep-alive"
    ],
    CURLOPT_RETURNTRANSFER => true,
    CURLOPT_FOLLOWLOCATION => 1,
    CURLOPT_BINARYTRANSFER => TRUE
];

curl_setopt_array($ch, $options);
$img = curl_exec($ch);
curl_close($ch);

Example using the Guzzle API for the CEP query: 

$client = new Client();
$urlCurl = 'http://www.buscacep.correios.com.br/servicos/dnec/consultaEnderecoAction.do';
$request = $client->createRequest('POST', $urlCurl, [
    'body' => [
        'relaxation' => $param,
        'tipoCep' => 'ALL',
        'semelhante' => 'N',
        'cfm' => 1,
        'Metodo' => 'listaLogradouro',
        'TipoConsulta' => 'relaxation',
        'StartRow' => 1,
        'EndRow' => 100
    ],
    'headers' => [
        'Host' => 'www.buscacep.correios.com.br',
        'User-Agent' => 'Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/40.0.2214.93 Safari/537.36',
        'Accept' => 'text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8',
        'Accept-Language' => 'pt-BR,pt;q=0.8,en-US;q=0.6,en;q=0.4',
        'Accept-Encoding' => 'gzip, deflate',
        'Referer' => 'http://www.buscacep.correios.com.br/',
        'Connection' => 'keep-alive'
    ],
]);
$body = $client->send($request)->getBody();
  

Documentation : link
Other Examples: link

     

Guzzle is an API that helps you in the requisition process, in the link to the side you can find the documentation, examples of use and other requirements for the correct operation.

    
25.02.2015 / 17:58
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