Round to nearest 10

Question

How can i round to nearest 10 in php? Say i have 23, what code would i use to get it to 30?

Answer 1

div by 10 then use ceil then mult by 10

http://php.net/manual/en/function.ceil.php

Answer 2

We can "cheat" via round with

$rounded = round($roundee / 10) * 10;

We can also avoid going through floating point division with

function roundToTen($roundee)
{
  $r = $roundee % 10;
  return ($r <= 5) : $roundee - $r : $roundee + (10 - $r);
}

Edit: I didn't know (and it's not well documented on the site) that round now supports "negative" precision, so you can more easily use

$round = round($roundee, -1);

Edit again: If you always want to round up, you can try

function roundUpToTen($roundee)
{
  $r = $roundee % 10;
  if ($r == 0)
    return $roundee;
  return $roundee + 10 - $r;    
}

Answer 3

round($number, -1);

This will round $number to the nearest 10. You can also pass a third variable if necessary to change the rounding mode.

More info here: http://php.net/manual/en/function.round.php

Answer 4

Try

round(23, -1);

Answer 5

My first impulse was to google for "php math" and I discovered that there's a core math library function called "round()" that likely is what you want.

Answer 6

floor will go down.

ceil will go up.

round will go to nearest.

$number = floor($input / 10) * 10;

Answer 7

ceil($roundee / 10) * 10;