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    $ch = curl_init();
    curl_setopt($ch, CURLOPT_URL, "https://api.roaring.io/token");
    curl_setopt($ch, CURLOPT_POST, 1);
    curl_setopt($ch, CURLOPT_POSTFIELDS, "scope=PRODUCTION&grant_type=client_credentials&client_secret=*secret*&client_id=*id*");
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
    
    $headers = [
        'Cache-Control' => 'no-cache',
        'Content-Type' => 'application/x-www-form-urlencoded',
        'authorization' => 'Basic Base64(consumer-key:*secret*)'
    ];
    
    curl_setopt($ch, CURLOPT_HTTPHEADER, $headers);
    $server_output = curl_exec($ch);