If I understand it correct, then you have a database with two tables, right?
If so, why not using the join possibility of MySql (or more in general: databases) to get information out of the two tables, such as:
select PROJECTS1.DATE, PROJECTS1.TITLE, PROJECTS1.PAID, PROJECTS2.DATE, PROJECTS2.TITLE PROJECTS3.PAID
from PROJECTS1, PROJECTS2
where <use your filter here>;
Don't know exactly what you want, that's why the where clause is not filled in by me.
Be aware that the where clause on its own again can be a complete sql statement.
HTH,
Geert