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+ de
To always round up you will want to use something like this:
$number = 0.8701;
echo ceil($number*100)/100;
// = 0.88
You can use 2 functions:
I've used both with success, and depending on what you're doing with the result, you may chose either of the above functions.
Later edit: If you want to only round up, you can use ceil() - http://www.php.net/manual/en/function.ceil.php + number format or round
echo round(ceil($number*100)/100,2);
As another user suggested earlier