[Solved] How I use for loop to get the addition result? [closed]

Question

  $answer = 1;

  for($x=1;$x<6;$x++){
      $answer+=5*$x;
  }

  echo $answer;

Accepted Answer

  $answer = 1;

  for($x=1;$x<6;$x++){
      $answer+=5*$x;
  }

  echo $answer;