Format a float to two decimal places

Question

I want to format a float value I have to two decimal places.

For example if I have a float for a price of 5.2, I want it to be formatted as 5.20

Answer 1

If you're simply trying to ensure a number is displayed with two decimal places, you could also use number_format, or (if this is a currency value) money_format.

e.g.: echo number_format('5.2', 2);