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@ 2018-04-24T09:57:11Z

<?php
$init = 5;
$str = round(6/3,2);
$iter = 3;
$total = $init;
for($i = 0; $i < $iter; $i++){
    if($i === 0){
        $res = $init - ($str * ($iter-1));
    }else{
        $res = $str;
    }
    $total = $total - $res;
    var_dump($total);
}

Output
Performance
VLD
References
Branches

var_dump: documentation ( source)
round: documentation ( source)

preferences:dark modelive preview

56.17 ms | 402 KiB | 5 Q