note 64580 added to function.empty

It is important to note that empty() does not check data type. This can change the functioning of any program if, at some point, your data might be all zeroes, containing no real data, but also not empty by PHP's definition. Think about this: $data = "00000"; if (empty($data)) echo "The data appears empty."; if (0==$data) //Use this test for number applications!! echo "The data is zero."; $data = 0; if (empty($data)) echo "Remember, zero is empty."; outputs: The data is zero. Remember, zero is empty. This could crop up in ZIP codes and phone numbers or zero-filled/zero-padded values from SQL. Watch those variable types! ---- Server IP: 216.194.113.175 Probable Submitter: 139.147.175.235 ---- X-Spam-Status: No, hits=3.1 required=5.0 tests=DATE_MISSING,FROM_NO_LOWER autolearn=no version=2.64 ---- Manual Page -- http://www.php.net/manual/en/function.empty.php Edit -- http://master.php.net/note/edit/64580 Del: integrated -- http://master.php.net/note/delete/64580/integrated Del: useless -- http://master.php.net/note/delete/64580/useless Del: bad code -- http://master.php.net/note/delete/64580/bad+code Del: spam -- http://master.php.net/note/delete/64580/spam Del: non-english -- http://master.php.net/note/delete/64580/non-english Del: in docs -- http://master.php.net/note/delete/64580/in+docs Del: other reasons-- http://master.php.net/note/delete/64580 Reject -- http://master.php.net/note/reject/64580 Search -- http://master.php.net/manage/user-notes.php