Question

How do you go about copying a cell from one table to another using mysql and php
reason i asked is I have two tables payment and payment history, payment stores the values of the last payment and shows what is currently owed however payment history stores all the payment transactions made and the amount owed after each transaction therefore the main reason i need it is to show the various amounts owed in respect to the payments, so for payment table i would use an update query and for payment history I use an insert query

Answer 1

If you want to INSERT into a table from another table you can use:

INSERT INTO TableBar (column1, column2 )
SELECT TableFoo.column1, TableFoo.column2 
FROM TableFoo
WHERE <<YOUR CLAUSE HERE>>