php - Why does the `FILTER_VALIDATE_NUMBER_FLOAT` constant drop the decimal place character?

Question

$quantity = filter_input(INPUT_GET, 'quantity', FILTER_SANITIZE_NUMBER_FLOAT);

Input: 100.25

Output: 10025

How can I preserve the . character?

Answer 1

Try this...

$quantity = filter_input(
              INPUT_GET, 
              'quantity', 
              FILTER_SANITIZE_NUMBER_FLOAT, 
              FILTER_FLAG_ALLOW_FRACTION
            );

CodePad.