Port StringToArray to function-arrays #9497

Is your feature request related to a problem or challenge?

It is part of #9285.
It is a good first issue. ArrayToString is already done in #9113, so you can easily find out which files are needed to modify.

#9352 #9425 are also nice for reference

Describe the solution you'd like

Port StringToArray.

Describe alternatives you've considered

No response

Additional context

No response