orInt64 example

        # case 7: b |= ( ( u64 )in[ 6] ) << 48;         # case 6: b |= ( ( u64 )in[ 5] ) << 40;         # case 5: b |= ( ( u64 )in[ 4] ) << 32;         # case 4: b |= ( ( u64 )in[ 3] ) << 24;         # case 3: b |= ( ( u64 )in[ 2] ) << 16;         # case 2: b |= ( ( u64 )in[ 1] ) << 8;         # case 1: b |= ( ( u64 )in[ 0] ); break;         # case 0: break;         # }         switch ($left) {
            case 7:
                $b = $b->orInt64(
                    ParagonIE_Sodium_Core32_Int64::fromInts(
                        0, self::chrToInt($in[6]) << 16
                    )
                );
            case 6:
                $b = $b->orInt64(
                    ParagonIE_Sodium_Core32_Int64::fromInts(
                        0, self::chrToInt($in[5]) << 8
                    )
                );
            case 5: