Thank you for taking the time to write to us, but this is not
a bug. Please double-check the documentation available at
http://www.php.net/manual/ and the instructions on how to report
a bug at http://bugs.php.net/how-to-report.php

That is expected, the float value doesn't uses comma.
http://docs.php.net/float

This is not specific to a float, but also an integer.

Floats, or any numeric type should use commas, otherwise what is the purpose in using the thousands_sep parameter in localeconv if it is not used?

In a HTML form, if someone enters 1,000 (which is normal) rather than 1000, PHP will treat it as a 1, because of the comma. This is because HTML forms passes fields as strings, not numbers.

For example, an HTML form that calculates a dollar value over a period of time. ex: $value = $dollar_value * $duration;

If someone enters 1,000 in the dollar_value field, and 5 in the duration field, the calculated value should be 5000, but instead it calculates to 5. This is wrong.


<form method="post">
<input type="text" name="dollar_value" value="<?= @$_POST['dollar_value'] ?>" /><br />
<input type="text" name="duration" value="<?= @$_POST['duration'] ?>" /><br />
<input type="submit" />
</form>

<?php
$value = $_POST['dollar_value'] * $_POST['duration'];
echo $value;
?>