Github API v3 POST with PHP - php

Question

I'm attempting to use the Github v3 API and posting JSON to update a profile (or some other call) and get the following response from Github;
Array
(
[message] => Body should be a JSON Hash
)
I have gone over the relevant page on the API Docs: http://developer.github.com/v3/users/
And this page: http://developer.github.com/v3/#http-verbs which covers POST/PATCH
Here is the code that I'm using
$data = array("bio" => "This is my bio" );
$data_string = json_encode($data);
function curl($url) {
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL,$url);
curl_setopt($ch, CURLOPT_CUSTOMREQUEST, "POST");
curl_setopt($ch, CURLOPT_POSTFIELDS, $data_string);
curl_setopt($ch, CURLOPT_RETURNTRANSFER,1);
curl_setopt($ch, CURLOPT_CONNECTTIMEOUT,1);
curl_setopt($ch, CURLOPT_USERPWD, "USERNAME:PASSWORD");
curl_setopt($ch, CURLOPT_HTTPAUTH, CURLAUTH_BASIC);
$content = curl_exec($ch);
curl_close($ch);
return $content;
}
$result = json_decode(curl('https://api.github.com/user'),true);
I have also tried CURLOPT_CUSTOMREQUEST as 'POST' and 'PATCH' but got the same error response for both.
Can anyone point me in the right direction for posting data to the API?

Answer 1

You have to either global $data_string or pass the $data_string variable to curl() for reusability.
Example:
function curl($curl, $data)
{
$data_string = json_encode($data);
// your code here
}

Answer 2

You should specify the header like this:
curl_setopt($ch, CURLOPT_HTTPHEADER, array('Content-Type: application/json'));