php计算[关闭]

Question

1 - 165.25
2 - 165.25
3 - 165.25
4 - 165.25
5 - 165.25
6 - 165.25
7 - 165.25
8 - 165.25
9 - 165.25
10 - 165.25

How to calculate .25 from all 10 amounts (0.25x10) = 2.5 and add that amount to the last value like this:

1 - 165
2 - 165
3 - 165
4 - 165
5 - 165
6 - 165
7 - 165
8 - 165
9 - 165
10 - 167.5

code

$amount = 165.25; // can be any number
    $periods = 10; // can be from 1 to 100;

for($i=1;$i<=$periods;$i++){
echo $i. ' - '.$amount."<br />";
}

UPDATE Working example:

$amount = 165.25; // can be any number
$periods = 10; // can be from 1 to 100;

$z = 0;
for($i=1;$i<=$periods;$i++){

    $e = explode(".", $amount);

    $z += $e[1] / 100;

    if($i == $periods){
        $e[0] += $z;
    }

echo $i. ' - '.$e[0]."<br />";
}

I don't like explode part any alternatives ?

Answer 1

$amount = 165.25;
$tmp = 0;
for($i=1;$i<=9;$i++){
  $tmp = $tmp + $amount - floor($amount);
  echo $i. ' - '.floor($amount)."<br />";
}
echo $i. ' - '.$amount+$tmp."<br />";