Question

I have a for loop and inside of it I have a if statement something like this:

  $output = "";
  $limit = 550;
  for ($i = 1; $i <= $limit; $i++) {
    if($i < 10){
     $output .= my_function($i*1);
    }elseif($i < 20){
     $output .= my_function($i*2);
    }elseif($i < 30){
     $output .= my_function($i*3);
    }
    //elseif 30 => 550
  }

Problem is I find it very tedious to have to continue this elseif statement down to 550. Is there any way to do this without writing 55 elseif statements.

Answer 1

Your thinking is exactly right. Having to repeat that much code is a sure sign that something is off.

In this case, the solution is pretty simple. You just want to use integer division to knock off the ones digit, which you don’t care about. You also need to adjust by one since you’re checking less than and not less than or equal.

$output = "";
$limit = 550;
for ($i = 1; $i <= $limit; $i++) {
     $temp = (int) ($i / 10) + 1;
     $output = my_function($i*$temp);
}