php truncate number

truncate.php

<?php
//https://stackoverflow.com/questions/4668628/truncate-float-numbers-with-php/12710283#12710283
function truncate($val, $f="2"){
    if(($p = strpos($val, '.')) !== false) {
        $val = floatval(substr($val, 0, $p + 1 + $f));
    }
    return $val;
}