public function issuerAlternativeName(): Ext\IssuerAlternativeNameExtension
    {
        /** @var Extension\IssuerAlternativeNameExtension $issuerAltName */
        $issuerAltName = $this->get(Ext\Extension::OID_ISSUER_ALT_NAME);
        return $issuerAltName;
    }
public function issuerAlternativeName(): Ext\IssuerAlternativeNameExtension
    {
        /** @var Extension\IssuerAlternativeNameExtension $issuerAltName */
        $issuerAltName = $this->get(Ext\Extension::OID_ISSUER_ALT_NAME);
        return $issuerAltName;
    }
public function issuerAlternativeName ( ) : Ext \ IssuerAlternativeNameExtension { /** @var Extension\IssuerAlternativeNameExtension $issuerAltName */ $ issuerAltName = $ this -> get ( Ext \ Extension :: OID_ISSUER_ALT_NAME ) ; return $ issuerAltName ; }
Get 'Issuer Alternative Name' extension.

@return \X509\Certificate\Extension\IssuerAlternativeNameExtension
Get Issuer Alternative Name extension .