Bug #71319 [Opn->Nab]: FILTER_SANITIZE_NUMBER_FLOAT return float instead of string

Edit report at https://bugs.php.net/bug.php?id=71319&edit=1 ID: 71319 Updated by: cmb@php.net Reported by: Cyb at Cyb10101 dot de Summary: FILTER_SANITIZE_NUMBER_FLOAT return float instead of string -Status: Open +Status: Not a bug Type: Bug Package: Filter related Operating System: Ubuntu 14.04 PHP Version: 5.5.31 -Assigned To: +Assigned To: cmb Block user comment: N Private report: N New Comment: FILTER_SANITIZE_NUMBER_FLOAT behaves as documented[1]: | Remove all characters except digits, +- and optionally .,eE. It does not return a float, because the result is not guaranteed to be a valid numer, e.g. <https://3v4l.org/Kc0q7>. [1] <https://www.php.net/manual/en/filter.filters.sanitize.php> Previous Comments: ------------------------------------------------------------------------ [2016-01-12 12:10:04] Cyb at Cyb10101 dot de I just think, as soon as I have a float or integer, it does not make much sense to have a string. Finally, it is indeed cleaned, so you get a float or not? Of course, there can convert with floatval. That's why I'm not sure. http://php.net/manual/de/function.floatval.php ------------------------------------------------------------------------ [2016-01-12 02:16:56] vadz77 at hotmail dot com I don't think this is a bug. FILTER_SANITIZE_NUMBER_FLOAT should just sanitize a string and return as a string. E.g. http://codepad.org/T690Wdad ------------------------------------------------------------------------ [2016-01-09 12:40:05] Cyb at Cyb10101 dot de Description: ------------ Hi, I'm not sure if that's a bug. The function filter_var($x, FILTER_SANITIZE_NUMBER_FLOAT) should not return a float instead string? Kind regards, Cyb10101 Test script: --------------- <?php function d($a = '', $x, $z = ' | ') {echo $a; var_dump($x); echo $z;} function run($x) { d('init=', $x); d('bool=', (filter_var($x, FILTER_VALIDATE_FLOAT) ? 'Valid' : 'Not Valid')); d('validate=', filter_var($x, FILTER_VALIDATE_FLOAT)); d('sanitize=', filter_var($x, FILTER_SANITIZE_NUMBER_FLOAT), "<br />\n"); } run(0.5); // init=float(0.5) | bool=string(5) "Valid" | validate=float(0.5) | sanitize=string(2) "05" run('0.5'); // init=string(3) "0.5" | bool=string(5) "Valid" | validate=float(0.5) | sanitize=string(2) "05" Expected result: ---------------- run(0.5); // ... | sanitize=float(0.5) run('0.5'); // ... | sanitize=float(0.5) ------------------------------------------------------------------------ -- Edit this bug report at https://bugs.php.net/bug.php?id=71319&edit=1