print_r($response) shows data but can't be accessed

Question

I'm requesting an access token from Facebook and the new response (since API v2.3) looks like this after using print_r($response);:

PHP:

Array ( [{"access_token":"123","token_type":"bearer","expires_in":111}]

I tried $response[0]->access_token and $response['access_token'] and both are returning nothing. How to get the access_token value?

Answer 1

I think $response looks like:

$response = array(
    '{"access_token":"123","token_type":"bearer","expires_in":111}' => ""
);

Somehow you've set the JSON body of the response as the key.

You can still access the token but it's a bit weird:

$json_response = key($response);
$data = json_decode($json_response, false);
$token = $data["access_token"]; // "123"