convert float to int if no decimal part

Question

i want to convert float to int if there is no decimal part. and if there is decimal part i want to be up to two digits. how do i check if there is a decimal part or not?

so i have data like this.

1.0000
2.0000
3.0000
9.8400
7.3200
8.0000

i want output like this

1
2
3
9.84 round to two digits if there is decimal part
7.32
8

is there a built function in php to know that the float has decimal part or not ? how do i do that in php?

Answer 1

I like the printf answer, but you can check if the number is equal to the integer cast of the number:

if( ($int = (int)$number) == $number) {
    $number = $int;
} else {
    $number = round($number, 2);
}

If you actually want 2 decimal places regardless then use number_format.