note 119528 added to filter.filters.validate

FILTER_VALIDATE_INT first casts its value to string which produces unexpected result for bool and float (https://bugs.php.net/bug.php?id=72490): <?php // Prints int(1). var_dump(filter_var(true, FILTER_VALIDATE_INT)); // ...but this prints bool(false). var_dump(filter_var(false, FILTER_VALIDATE_INT)); // -------- // Prints bool(false). var_dump(filter_var(1.1, FILTER_VALIDATE_INT)); // ...but this prints int(0). var_dump(filter_var(0.0, FILTER_VALIDATE_INT)); // ...but this again is bool(false). var_dump(filter_var('0.0', FILTER_VALIDATE_INT)); // Also bool(false). var_dump(filter_var('-0.0', FILTER_VALIDATE_INT)); ?> Live sample: https://3v4l.org/CZW0W The docs are not clear on how exactly this casting affects the result for certain input values. ---- Server IP: 72.52.91.14 Probable Submitter: 94.242.243.231 ---- Manual Page -- http://php.net/manual/en/filter.filters.validate.php Edit -- https://master.php.net/note/edit/119528 Del: integrated -- https://master.php.net/note/delete/119528/integrated Del: useless -- https://master.php.net/note/delete/119528/useless Del: bad code -- https://master.php.net/note/delete/119528/bad+code Del: spam -- https://master.php.net/note/delete/119528/spam Del: non-english -- https://master.php.net/note/delete/119528/non-english Del: in docs -- https://master.php.net/note/delete/119528/in+docs Del: other reasons-- https://master.php.net/note/delete/119528 Reject -- https://master.php.net/note/reject/119528 Search -- https://master.php.net/manage/user-notes.php