changing float to dollar format

[JLW]

I am calculating tax which requires floating point numbers. I need to know how to round my numbers and then only have 2 places after the decimal point.
Here is an example of what I am doing:

say the tax is 8.5%

and the item to be purchased is $3.52

3.52 times .085 is .2992

so the tax would be .30 but how do I round it (to get .30) and

then get it in the right format?

[TheGringo]

try:

$tax = number_format($tax, 2);

[LordShryku]

number_format with his example would output .29. It doesn't do any actual calculation. I think you really want to use [man]round[/man].

[JLW]

Thanks so much!! I got it working using round(). have a good day!!!