Paypal get access token with PHP cURL - php

Question

hello i'm using code used by other people who supposedly have gotten it to work and have gotten their token information retrieved. The code is as follows:
$ch = curl_init();
$clientId = "myclientid";
$secret = "mysecret";
curl_setopt($ch, CURLOPT_URL, "https://api.sandbox.paypal.com/v1/oauth2/token");
curl_setopt($ch, CURLOPT_HEADER, false);
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
curl_setopt($ch, CURLOPT_SSLVERSION , 6); //NEW ADDITION
curl_setopt($ch, CURLOPT_POST, true);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_USERPWD, $clientId.":".$secret);
curl_setopt($ch, CURLOPT_POSTFIELDS, "grant_type=client_credentials");
$result = curl_exec($ch);
if(empty($result))die("Error: No response.");
else
{
$json = json_decode($result);
print_r($json->access_token);
}
curl_close($ch); //THIS CODE IS NOW WORKING!
I retrieved this code from Paypal API with PHP and cURL and have seen it implemented in some others peoples code so i assume that it works. However i'm only receiving no response even though i am supplying the correct client id and secret (maybe a recent update has broken this code?).
The guide provided by Paypal on getting the access token is found here-> https://developer.paypal.com/docs/integration/direct/make-your-first-call/
however it demonstrates the solution in cURL and not through the PHP cURL extension so its alittle cryptic to me. Any help?

Answer 1

Well it seems that it is now a requirement to declare what type of SSL Version to use, thus the code above will work when curl_setopt($ch, CURLOPT_SSLVERSION , 6); //tlsv1.2 is inserted.

Answer 2

Just tested the API and I can confirm this code is working :
(No SSL options)
$curl = curl_init();
curl_setopt_array($curl, array(
CURLOPT_URL => "https://api.sandbox.paypal.com/v1/oauth2/token",
CURLOPT_RETURNTRANSFER => true,
CURLOPT_ENCODING => "",
CURLOPT_MAXREDIRS => 10,
CURLOPT_TIMEOUT => 30,
CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
CURLOPT_CUSTOMREQUEST => "POST",
CURLOPT_USERPWD => $PAYPAL_CLIENT_ID.":".$PAYPAL_SECRET,
CURLOPT_POSTFIELDS => "grant_type=client_credentials",
CURLOPT_HTTPHEADER => array(
"Accept: application/json",
"Accept-Language: en_US"
),
));
$result= curl_exec($curl);
$array=json_decode($result, true);
$token=$array['access_token'];
echo "<pre>";
print_r($array);