#39024 [Opn->Csd]: regex equivalent for ctype_alnum() is wrong

ID: 39024 Updated by: joey@php.net Reported By: arpad@php.net -Status: Open +Status: Closed Bug Type: Documentation problem PHP Version: Irrelevant New Comment: This bug has been fixed in the documentation's XML sources. Since the online and downloadable versions of the documentation need some time to get updated, we would like to ask you to be a bit patient. Thank you for the report, and for helping us make our documentation better. Fixed in CVS. Previous Comments: ------------------------------------------------------------------------ [2006-10-03 10:56:34] arpad@php.net Description: ------------ The manual page for ctype_alnum() - http://www.php.net/manual/en/function.ctype-alnum.php - states that "the function is equivalent to preg_match('/^[a-z0-9]+$/i', $text).". However $ matches a trailing newline as well as the end of the subject; it should be replaced with \z which only matches the end of the subject. Reproduce code: --------------- $s = "abc\n"; var_dump(ctype_alnum($s), preg_match("/^[a-z0-9]+$/i", $s)); Expected result: ---------------- bool(false) int(0) Actual result: -------------- bool(false) int(1) ------------------------------------------------------------------------ -- Edit this bug report at http://bugs.php.net/?id=39024&edit=1