Getting Robinhood options data in PHP - php

Question

I'm trying to get Robinhood option data in PHP, which requires authentication. I feel like I am a breath away from my solution, but after trying for a day I am ready to ask for help.
So far, I have been able to log in to Robinhood and get the token, then use that token to authenticate a request for a second (oauth) token successfully. But for some reason, I am unable to get options data for the option of my choice (MSFT Put 75 Exp 1/17/2020, found here with proper authentication https://api.robinhood.com/marketdata/options/0fd40096-9cbc-4b14-9df4-c1c9ea5f5729/ )
Here is how I login
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL,"https://api.robinhood.com/api-token-auth/");
curl_setopt($ch, CURLOPT_POST, 1);
curl_setopt($ch, CURLOPT_POSTFIELDS, "username=example#gmail.com&password=mypassword");
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
$server_output = curl_exec ($ch);
$result = json_decode($server_output);
$token = $result->token;
curl_close ($ch);
Then I take that token and convert it
$url = 'https://api.robinhood.com/oauth2/migrate_token/';
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL,$url);
curl_setopt($ch, CURLOPT_POST, 1);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_HTTPHEADER, array('Authorization: Token '.$token));
$server_output = curl_exec ($ch);
$result = json_decode($server_output);
$oauth_token = $result->access_token;
curl_close ($ch);
Up to here so far so good, but I am only getting a blank response when I try the following:
$url = 'https://api.robinhood.com/marketdata/options/0fd40096-9cbc-4b14-9df4-c1c9ea5f5729/';
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL,$url);
curl_setopt($ch, CURLOPT_POST, 1);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_HTTPHEADER, array('Authorization: Bearer '.$oauth_token));
$server_output = curl_exec ($ch);
var_dump($server_output);
curl_close ($ch);
Any help or ideas why I'm having issues on the last part would be immensely appreciated :)
EDIT: In answer to WebCode.ie, the result of print_r(curl_getinfo($ch)) is:
Array
(
[url] => https://api.robinhood.com/marketdata/options/0fd40096-
cbc-4b14-9df4-c1c9ea5f5729/
[content_type] => application/json
[http_code] => 405
[header_size] => 187
[request_size] => 453
[filetime] => -1
[ssl_verify_result] => 0
[redirect_count] => 0
[total_time] => 0.386518
[namelookup_time] => 2.8E-5
[connect_time] => 0.094845
[pretransfer_time] => 0.289176
[size_upload] => 0
[size_download] => 0
[speed_download] => 0
[speed_upload] => 0
[download_content_length] => 0
[upload_content_length] => -1
[starttransfer_time] => 0.386491
[redirect_time] => 0
[redirect_url] =>
[primary_ip] => 52.200.3.207
[certinfo] => Array
(
)
[primary_port] => 443
[local_ip] => 84.x.x.x //my IP
[local_port] => 60974
)

Answer 1

Looks like I was making POST call when I should have been making a GET call. If you are having trouble remove this line from my last code block.
curl_setopt($ch, CURLOPT_POST, 1);