Curl passing and receiving parameters?

Question

I have the link $page below:

$pagina = 'http://www.google.com';

I’d like to know the difference between:

$ch = curl_init($$pagina);

and:

$ch = curl_init();
curl_setopt( $ch, CURLOPT_URL, $pagina );

What’s the difference?

It’s just that I need send a few information to the API of CIELO and after being processed those information, receive of himself to reply.

I also need to send a variable for header of that requisition.

I’d like an example by doing you a favor!

I’m doing as below, but only gives error not receiving the variable:

{"message":"Erro: token x-picpay-token obrigatório.","code":"401"}

The staff of Picpay said it is mandatory to send x-picpay-token in the header but I don’t think I’m doing the right thing

Code:

<?php

require_once "_global/_erros/erros.ini";

$site     = "http://www.hotplateprensas.com.br";

$producao = "https://appws.picpay.com/ecommerce/public/payments";

$headers  = array ( 
      "Content-Type   : application/json",
      "x-picpay-token : a840f8a9-e9b1-4dd5-a1c4-6ed32209d505"
);

$dados = array ( 
           "referenceId    : " . 1234,
           "callbackUrl    : " . $site . "/picpay.php",
           "returnUrl      : " . $site . "/picpayReturn.php",
           "value          : " . 222.22,
           "buyer          : " . array (
                "firstName : " . "Carlos",
                "lastName  : " . "Alberto",
                "document  : " . 12345678900,
                "email     : [email protected]",
                "phone     : [phone]" //  [phone]
           ),
);

$ch = curl_init($producao);

curl_setopt( $ch, CURLOPT_URL, $producao );
curl_setopt( $ch, CURLOPT_POST,  true );
curl_setopt( $ch, CURLOPT_POSTFIELDS,  json_encode ( $dados ) );
curl_setopt( $ch, CURLOPT_CUSTOMREQUEST, "POST" );
curl_setopt( $ch, CURLOPT_RETURNTRANSFER, true );
curl_setopt( $ch, CURLOPT_SSL_VERIFYPEER, false );
curl_setopt( $ch, CURLOPT_HEADER, true );
curl_setopt( $ch, CURLOPT_HTTPHEADER, $headers );
curl_setopt( $ch, CURLINFO_HEADER_OUT, true );

$result = curl_exec( $ch );
$erro   = curl_error( $ch );
$info   = curl_getinfo( $ch );

print "<pre>";
    print_r( $result );
    print_r( $erro );
    //print_r( $info );
print "</pre>";

// Fecho a conexão
curl_close( $ch );

?>

After the guidance of the colleague and after changing, now I have 2 problems:

<?php

$site     = "http://www.hotplateprensas.com.br";

$producao = "https://appws.picpay.com/ecommerce/public/payments";

$headers  = array ( 
      "Content-Type   : application/json",
      "x-picpay-token : a840f8a9-e9b1-4dd5-a1c4-6ed32209d505"
);

$dados = array ( 
           "referenceId    : " . 1234,
           "callbackUrl    : " . $site . "/picpay.php",
           "returnUrl      : " . $site . "/picpayReturn.php",
           "value          : " . 222.22,
           "buyer          : " . array (
                "firstName : " . "Carlos",
                "lastName  : " . "Alberto",
                "document  : " . 12345678900,
                "email     : [email protected]",
                "phone     : [phone]" //  [phone]
           ),
);

$ch = curl_init($producao);

curl_setopt( $ch, CURLOPT_URL, $producao );
curl_setopt( $ch, CURLOPT_POST,  true );
curl_setopt( $ch, CURLOPT_POSTFIELDS,  json_encode ( $dados ) );
curl_setopt( $ch, CURLOPT_CUSTOMREQUEST, "POST" );
curl_setopt( $ch, CURLOPT_RETURNTRANSFER, true );
curl_setopt( $ch, CURLOPT_SSL_VERIFYPEER, false );
curl_setopt( $ch, CURLOPT_HEADER, true );
curl_setopt( $ch, CURLOPT_HTTPHEADER, $headers );
curl_setopt( $ch, CURLINFO_HEADER_OUT, true );

$result = curl_exec( $ch );
$erro   = curl_error( $ch );
$info   = curl_getinfo( $ch );

print "<pre>";
    print_r( $result );
    print_r( $erro );
    //print_r( $info );
print "</pre>";

// Fecho a conexão
curl_close( $ch );

?>

Along those lines,

 "phone     : [phone]" //  [phone]

Are you saying:

Notice: Array to string conversion in D:\Trabalhos\host\htdocs\hotplateprensas.com.br\picpay2.php on line 34

and continues to say:

HTTP/1.1 401 Unauthorized
Date: Mon, 18 Feb 2019 23:12:11 GMT
Content-Type: application/json;charset=utf-8
Transfer-Encoding: chunked
Connection: keep-alive
Content-Encoding: gzip
Cache-Control: no-cache, private
Vary: Accept-Encoding
X-Powered-By: PHP/7.2.8

    {"message":"Erro: x-picpay-token=': a840f8a9-e9b1-4dd5-a1c4-6ed32209d505' inválido.","code":"401"}