show 2 digits max after floating point ... only if it is a float number with more than 2 float digits

Question

in my app i do some math and the result can be float or int

i want to show the final result with two digit after the decimal point max ... if result is a float number

there are two options to do this

number_format($final ,2);

and

sprintf ("%.2f", $final );

but problem is ... if my final result is a int like 25 i end up with

25.00 

or if final result is some thing like 12.3 it gives me

12.30

and i dont want that

is there any way to format a number to show 2 digits after float point ONLY IF it's a float number with more than 2 digits after decimal point ? or should i do some checking before formatting my number ?

Answer 1

<?php
$number = 25;
print round($number, 2);

print "\n";

$number = 25.3;
print round($number, 2);

print "\n";

$number = 25.33;
print round($number, 2);

prints:

25
25.3
25.33