PHP Curl http code 100 and failing

Question

I'm trying to use a web service with php curl but I'm getting the http code "100" and an "Recv failure: Connection was reset" error.. I tested the web service with google chrome's extension "Postman -REST Client" and it works perfectly. I searched this http code and it looks like the server is expecting a body request data but I don't know what it's expecting me to send since I'm not posting any data, just the headers.

My code looks like this:

error_reporting(-1);

    $header = array('Content-Length: 1831', 'Content-Type: application/json', 'Authorization: '. $authorization, 'Authorization-Admin: '. $authorization_admin);
    $url = 'http://api.bookingreports.com/public/1/analytics/reports/departures';


    $ch = curl_init($url);

    curl_setopt($ch, CURLOPT_POST, true); 
    curl_setopt($ch, CURLOPT_HTTPHEADER, $header);
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, true); 
    curl_setopt($ch, CURLINFO_HEADER_OUT, true);


    $result = curl_exec($ch); 
    $errorCode = curl_getinfo($ch, CURLINFO_HEADER_OUT);
    $httpcode = curl_getinfo($ch, CURLINFO_HTTP_CODE);

    echo $result;
    echo curl_error($ch);
    echo $errorCode;
    echo $httpcode;

    //log_message('debug', 'HTTP HEADER '. $errorCode); 
    curl_close($ch);

and the header I'm sending looks like this:

POST /public/1/analytics/reports/departures HTTP/1.1
Host: api.bookingreports.com
Accept: */*
Content-Length: 1831
Content-Type: application/json
Authorization: myauthcode
Authorization-Admin: myauthadmin
Expect: 100-continue

Answer 1

You're sending a wrong Content-Length value. That's why the server expects a request body. Because you aren't sending any data, Content-Length should be set to 0.

$header = array('Content-Length: 0', 'Content-Type: application/json', 'Authorization: '. $authorization, 'Authorization-Admin: '. $authorization_admin);

When you decide to compose request header manually, make sure Content-Length is set to a correct value.