note 64052 added to function.ctype-digit

Beware of using this function on an empty string. It caught me off-guard because in PHP 4.4.0 it returns TRUE on an empty string, while in PHP 4.4.2 it returns FALSE. Since the documentation is not entirely clear on what should happen with an empty string, it's best to check for that case separately yourself. ---- Server IP: 194.109.193.119 Probable Submitter: 195.73.225.50 ---- 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.ctype-digit.php Edit -- http://master.php.net/note/edit/64052 Del: integrated -- http://master.php.net/note/delete/64052/integrated Del: useless -- http://master.php.net/note/delete/64052/useless Del: bad code -- http://master.php.net/note/delete/64052/bad+code Del: spam -- http://master.php.net/note/delete/64052/spam Del: non-english -- http://master.php.net/note/delete/64052/non-english Del: in docs -- http://master.php.net/note/delete/64052/in+docs Del: other reasons-- http://master.php.net/note/delete/64052 Reject -- http://master.php.net/note/reject/64052 Search -- http://master.php.net/manage/user-notes.php