PHP money string conversion to integer error

Question

I have a small financial application with PHP as the front end and MySQL as the back end. I have ancient prejudices, and I store money values in MySQL as an integer of cents

Answer 1

You should never ever store currency in floating point, because it always get results you don't expect.

Check out php BC Maths, it allow you to store your currency as string, then perform very high precision arithmetic on them.