app\Certificate::getIssuedDetails PHP Method

    public function getIssuedDetails()
    {
        $cert = file_get_contents($this->getPath() . "/cert.pem");
        $details = openssl_x509_parse($cert);
        // filter only active purposes and show names only
        $details['purposes'] = array_map(function ($item) {
            return $item[2];
        }, array_filter($details['purposes'], function ($item) {
            return $item[0] == 1;
        }));
        return json_encode($details, JSON_PRETTY_PRINT | JSON_UNESCAPED_SLASHES);
    }