PHP to round up to the 2nd decimal place

Question

By calculating areas I have a number which I need to display in a strange way.

Always display 2 decimal places. Always round up the 2nd decimal place if the 3rd+ decimal places > 0.

Examples:

0.5 = 0.50
0.500003 = 0.51
0.96531 = 0.97
0.96231 = 0.97
0.8701 = 0.88

Is there a built in function to do this in PHP or do I need to write one?

Answer 1

To always round up you will want to use something like this:

$number = 0.8701;

echo ceil($number*100)/100;

// = 0.88