HTML OR Javascript Submit and find

Hello MPGHians, I was looking for a code where I could submit a letter to someone then any family member can type my first and last name and find the letter I typed. Is there a possible code?

If you can help me thanks.

Edit: I learned that this is an SQL Query used in PHP. I still need the code pleas!

Make a database where you can safe your first name, last name and letter.(sql)
Make a submit page that can safe into database.(php,(my)sql)
make a search page that can search into database (php,(my)sql)

@yearupie Could you please help me with the code. I'm new at making sites and i'm doing it by scratch.