'Get Header Authorization value of a login api (sent with username and password in json body) using php curl

I am writing a code in PHP where i need to call and API (Sending username and password) and then fetch the authorization value.

I tried some solutions which are already there on stack but was not able to do the same

enter image description here

Can anyone please suggest a way around

This is one of the code i tried

$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_POST, TRUE);
curl_setopt($ch, CURLOPT_POSTFIELDS, $postdata);
curl_setopt($ch, CURLOPT_HEADER, 1);
curl_setopt($ch,  CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_HEADERFUNCTION, "HandleHeaderLine");
$output = curl_exec($ch);
curl_setopt($ch, CURLOPT_HEADERFUNCTION,
function($curl, $header) use (&$headers)
      {
        $len = strlen($header);
        $header = explode(':', $header, 2);
        if (count($header) < 2) // ignore invalid headers
          return $len;

        $headers[strtolower(trim($header[0]))][] = trim($header[1]);

        return $len;
      }
    );
phpapicurl


Solution 1:[1]

You call your API before add the headers:

$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_POST, TRUE);
curl_setopt($ch, CURLOPT_POSTFIELDS, $postdata);
curl_setopt($ch, CURLOPT_HEADER, 1);
curl_setopt($ch,  CURLOPT_RETURNTRANSFER, 1);


$headers = array(
   "X-Custom-Header: value",
   "X-Custom-Header: value"
);
curl_setopt($curl, CURLOPT_HTTPHEADER, $headers);
    

$output = curl_exec($ch); //Call your api at end

Solution 2:[2]

I was able to read the headers, I was trying to read the http header responses from https url posting request to http API

Sources

This article follows the attribution requirements of Stack Overflow and is licensed under CC BY-SA 3.0.

Source: Stack Overflow

Solution Source
Solution 1 Voxxii
Solution 2 d3vdpro

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