I was actually searching for a function that could round to the nearest variable, and this page kept coming up in my searches. So when I finally ended up writing the function myself, I thought I would post it here for others to find.
The function will round to the nearest variable:
function roundToTheNearestAnything($value, $roundTo)
{
$mod = $value%$roundTo;
return $value+($mod<($roundTo/2)?-$mod:$roundTo-$mod);
}
This code:
echo roundToTheNearestAnything(1234, 10).'<br>';
echo roundToTheNearestAnything(1234, 5).'<br>';
echo roundToTheNearestAnything(1234, 15).'<br>';
echo roundToTheNearestAnything(1234, 167).'<br>';
Will output:
1230
1235
1230
1169
to nearest 10 , should be as below
$number = ceil($input * 0.1)/0.1 ;
Try this......pass in the number to be rounded off and it will round off to the nearest tenth.hope it helps....
round($num, 1);
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 - $r;
}
round($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
This can be easily accomplished using PHP 'fmod' function. The code below is specific to 10 but you can change it to any number.
$num=97;
$r=fmod($num,10);
$r=10-$r;
$r=$num+$r;
return $r;
OUTPUT: 100
I wanted to round up to the next number in the largest digits place (is there a name for that?), so I made the following function (in php):
//Get the max value to use in a graph scale axis,
//given the max value in the graph
function getMaxScale($maxVal) {
$maxInt = ceil($maxVal);
$numDigits = strlen((string)$maxInt)-1; //this makes 2150->3000 instead of 10000
$dividend = pow(10,$numDigits);
$maxScale= ceil($maxInt/ $dividend) * $dividend;
return $maxScale;
}
My first impulse was to google for "php math" and I discovered that there's a core math library function called "round()" that likely is what you want.
Try this:
ceil($roundee / 10) * 10;
Hey i modify Kenny answer and custom it not always round function now it can be ceil and floor function
function roundToTheNearestAnything($value, $roundTo,$type='round')
{
$mod = $value%$roundTo;
if($type=='round'){
return $value+($mod<($roundTo/2)?-$mod:$roundTo-$mod);
}elseif($type=='floor'){
return $value+($mod<($roundTo/2)?-$mod:-$mod);
}elseif($type=='ceil'){
return $value+($mod<($roundTo/2)?$roundTo-$mod:$roundTo-$mod);
}
}
echo roundToTheNearestAnything(1872,25,'floor'); // 1850<br>
echo roundToTheNearestAnything(1872,25,'ceil'); // 1875<br>
echo roundToTheNearestAnything(1872,25,'round'); // 1875
$value = 23;
$rounded_value = $value - ($value % 10 - 10);
//$rounded_value is now 30
There are many anwers in this question, probably all will give you the answer you are looking for. But as @TallGreenTree mentions, there is a function for this.
But the problem of the answer of @TallGreenTree is that it doesn't round up, it rounds to the nearest 10. To solve this, add +5
to your number in order to round up. If you want to round down, do -5
.
So in code:
round($num + 5, -1);
You can't use the round mode
for rounding up, because that only rounds up fractions and not whole numbers.
If you want to round up to the nearest 100
, you shoud use +50
.
div by 10 then use ceil then mult by 10
Try
round(23, -1);
For people who want to do it with raw SQL, without using php, java, python etc.
SET SQL_SAFE_UPDATES = 0;
UPDATE db.table SET value=ceil(value/10)*10 where value not like '%0';
Source: Stackoverflow.com