How to get upto two digits after decimal in PHP

Sample Input

-33.8670522

151.1977362

12.9582505

Required Output

-33.86

151.19

12.95

Output that i am getting

-33.87

151.20

12.96

Below is my code but issue is it is rounding off the last digit

$n_va = substr($va, 0, $va < 0 ? 3 : 2);

Can anybody help me with it!!!!

Answer

To get your desired results, multiply the numbers by 100, take the intval to truncate to the integer part and then divide by 100 again:

$values = array(-33.8670522, 151.1977362, 12.9582505);

foreach ($values as $value) {
    echo intval($value * 100) / 100 . PHP_EOL;
}

Output:

-33.86
151.19
12.95

Demo on 3v4l.org