Hi I am trying to divide two integers ex: 12/13 but I always get a whole integer 1 not a decimal number.
I tried type casting the values to float before hand with no success.
Basically all I want is a decimal result like: 0.923...
$x = 12;
$y = 13;
echo $value = $x / $y; //Would like to see 0.923 not 1
Under normal circumstances your code should return the floating value 0.923076
...
The reason you get a rounded integer might be because you have your ini setting
for "precision"
set to 0
, to fix this either edit your php.ini
or use ini_set("precision", 3);
in your code before the calculation.
Another way to workaround this is to use BCmath:
echo $value=bcdiv($a, $b, 3);
And yet another way without using any extension is to use a little math trick by multiplying the value you want to divide by 1000
to get 3 decimals
.
This way you'll divide 12000
by 13
and the whole part will be 923
, then since you multiplied by 1e3 insert a comma/dot before the last most 3 places.
function divideFloat($a, $b, $precision=3) {
$a*=pow(10, $precision);
$result=(int)($a / $b);
if (strlen($result)==$precision) return '0.' . $result;
else return preg_replace('/(\d{' . $precision . '})$/', '.\1', $result);
}
echo divideFloat($a, $b); // 0.923