How to find decimal of variables

Question

I have one problem in my project.

$value="Rs.1,195";
echo getfloat($value);

I need out is only

1195

Answer 1

 $string = "Rs.1,195";
 print preg_replace("/[^0-9]/","",$string);

Output = 1195

Answer 2

$value="Rs.1,195";
$int = filter_var($value, FILTER_SANITIZE_NUMBER_INT);

Answer 3

Maybe you are looking for floatval()