On 06/05/10 11:52, Paul Waring wrote:
Ashley Sheridan wrote:
Why don't you store them as integer values and add in the decimal point
with something like sprintf() afterwards? Store the values as pence and
then you won't have any rounding problems.

If I was designing the system from scratch, that's what I'd do.
Unfortunately this is an add-on to a legacy system where currency values
are already stored as strings in the database (yes, not ideal I know,
but you have to work with what you've got).

Can you not just add up the floating point numbers and the round them with round() (http://www.php.net/manual/en/function.round.php) Certainlay for consistent calculations I'd always use the float values for as long as possible...

Otherwise, why not multiply by 1000 before taking the intval, then at least you preserve the next decimal place.

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