Online PHP editor | refs for hbWcb

@ 2017-07-13T05:06:15Z

<?php
$val = array(700,1000,2000,1500,1000);
$subtract = 3000;

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