note 86775 added to function.filter-var

Note that when using FILTER_VALIDATE_INT along with the FILTER_FLAG_ALLOW_HEX flag, the string "2f", for example, is not validated successfully, because you must use the "0x" prefix, otherwise, it treats the data as base 10. The range options are also smart enough to recognize when the boundaries are exceeded in different bases. Here's an example: <?php $foo = '256'; $bar = '0x100'; var_dump(validate_int($foo)); // false, too large var_dump(validate_int($bar)); // false, too large function validate_int($input) { return filter_var( $input, FILTER_VALIDATE_INT, // We must pass an associative array // to include the range check options. array( 'flags' => FILTER_FLAG_ALLOW_HEX, 'options' => array('min_range' => 1, 'max_range' => 0xff) ) ); } ?> ---- Server IP: 209.41.74.194 Probable Submitter: 96.240.47.235 ---- Manual Page -- http://www.php.net/manual/en/function.filter-var.php Edit -- https://master.php.net/note/edit/86775 Del: integrated -- https://master.php.net/note/delete/86775/integrated Del: useless -- https://master.php.net/note/delete/86775/useless Del: bad code -- https://master.php.net/note/delete/86775/bad+code Del: spam -- https://master.php.net/note/delete/86775/spam Del: non-english -- https://master.php.net/note/delete/86775/non-english Del: in docs -- https://master.php.net/note/delete/86775/in+docs Del: other reasons-- https://master.php.net/note/delete/86775 Reject -- https://master.php.net/note/reject/86775 Search -- https://master.php.net/manage/user-notes.php