Form Not Processing Decimal Number

I have a form and script that works with numbers that are entered, but it doesn't seem to be able to work with decimal numbers.

Im thinking it could be due to this...

$string = preg_replace("/[^0-9]",'', $stringa);

If this is the problem, how can I make it so that the form can work with decimals and not turn each number entered into an integer?

Thanks in advance.

I have a form and script that works with numbers that are entered, but it doesn't seem to be able to work with decimal numbers.

Im thinking it could be due to this...

$string = preg_replace("/[^0-9]",'', $stringa);

If this is the problem, how can I make it so that the form can work with decimals and not turn each number entered into an integer?

Thanks in advance.


$string = preg_replace("/[^\d.]/",'',$stringa);

be aware that will allow to have multiple '.' in $stringa.

regards