PHP CURL Authentication - php

Question

The documentation says like this:
curl —X POST -c cookies.txt —d "login=demo&password=demo42" https://www.myadcash.com/console/login_proxy.php
Output will be:
{"token":"6333531373034343433623663646836383165693937383167373264323334663"}
My current code
$ch = curl_init();
curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, 0);
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
curl_setopt($ch, CURLOPT_HTTPHEADER, array("login"=>"demo","password"=>"demo42"));
curl_setopt($ch,CURLOPT_URL,"https://www.myadcash.com/console/login_proxy.php");
curl_setopt($ch, CURLOPT_COOKIEJAR, dirname(__FILE__) . 'cookies.txt');
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
$response = curl_exec($ch);
curl_close($ch);
echo $response;
No JSON response is showing. Although the text file is saving. Please help me to find right direction. Also if there is any error in the code, please let me know.

Answer 1

-d "login=demo&password=demo42" means data field, thats why pass as post fields not headers.
Therefore these two lines in your curl
curl_setopt($ch, CURLOPT_POST, 1); //Optional
curl_setopt($ch, CURLOPT_POSTFIELDS, "login=demo&password=demo42");
and you must get output.
On the basis of documentation, credentials must be post fields not header that's why no need to put login and password on header.
You don't need
curl_setopt($ch, CURLOPT_HTTPHEADER, array("login"=>"demo","password"=>"demo42"));