Question

Given the following cod:

 $number = 1050.55;
 var_dump($number - floor($number));

Why does the above code returns the following result?

float(0.54999999999995)

I want a fixed value like 0.55 in this case. Can you help me please?

Answer 1

Floating point operations are not precise and the remainder errors are common.
If you know, what is your desired precission (eg. two digits after the dot), you can use round() function on the result.
In this case this will be:

$number = 1050.55;
var_dump(round($number - floor($number), 2));