How to write data to two MySQL tables?

Question

MySQL

The PHP form must call the 'reader registration' procedure, on the form, 4 text fields:
full name, address, date of birth, phone numbers - separated by commas.
Everything should be stored in 2 tables:
1: reader ( ID , fullName, address, birthday)
2: readerPhones ( number , reader_ID)
First you need to send the full name, address, and date of birth to the `reader` table.
Then get their id, parse the numbers, and send them to the readerPhones table.
I can't figure out how to turn it all around. What is the best way to send numbers, as a string separated by commas and in a different form? How to parse numbers in a procedure and where if there are no arrays in SQL. In general, if it's not difficult for anyone, throw an example.

Answer 1

Two functions and two INSERT statements. Is everything clear here?