public static function getAlgorithmParameters(AlgorithmIdentifierType $algo)
    {
        $seq = $algo->toASN1();
        return $seq->has(1) ? $seq->at(1)->asElement() : null;
    }
public static function getAlgorithmParameters(AlgorithmIdentifierType $algo)
    {
        $seq = $algo->toASN1();
        return $seq->has(1) ? $seq->at(1)->asElement() : null;
    }
public static function getAlgorithmParameters ( AlgorithmIdentifierType $ algo ) { $ seq = $ algo -> toASN1 ( ) ; return $ seq -> has ( 1 ) ? $ seq -> at ( 1 ) -> asElement ( ) : null ; }
Get ASN.1 parameters from algorithm identifier.

@param AlgorithmIdentifierType $algo
@return Element|null ASN.1 element or null if parameters are omitted
Get ASN . 1 parameters from algorithm identifier .