Online PHP editor | refs for OvKMT

@ 2017-02-17T20:18:40Z

<?php
$val = array(1,0,2,1,1);
$subtract = 3.5;

foreach($val as $key => $item){
    if ($subtract > $item){
        $subtract -= $item; 
        $val[$key] = 0;
    }
    else{
        $val[$key] -= $subtract;
        $subtract = 0;
    }
}
print_r($val);