Get followers by api via PHP

For Helix you don’t need the accept header and the auth token needs the prefix of Bearer


    curl_setopt_array($ch, array(
        CURLOPT_HTTPHEADER => array(
            'Client-ID: ' . $clientId,
            "Authorization: Bearer oauth_code"
        ),
        CURLOPT_SSL_VERIFYPEER => false,
        CURLOPT_RETURNTRANSFER => true,
        CURLOPT_URL => $videosApi
    ));

Make sure you are generating a token and not using the client secret you can find an example of that here https://github.com/BarryCarlyon/twitch_misc/tree/main/authentication/app_access_tokens/php