#45710 [Bgs]: ctype_digit not validating int values

ID: 45710 User updated by: dragos at codersnest dot com Reported By: dragos at codersnest dot com Status: Bogus Bug Type: Variables related Operating System: fedora 6 PHP Version: 5.1.6 New Comment: Actually it expects a string, I know that, but why wouldn't it say "true" if I ask ctype_digit(65) ? Isn't 65 a valid number? Is every character a decimal digit ? I guess there should be a cast there to string for the input parameter, and then the bug would be fixed, don't you? Previous Comments: ------------------------------------------------------------------------ [2008-08-05 00:52:33] jani@php.net Thank you for taking the time to write to us, but this is not a bug. Please double-check the documentation available at http://www.php.net/manual/ and the instructions on how to report a bug at http://bugs.php.net/how-to-report.php The function expects a string as parameter. Integer does not need chjecking if it's an integer. ------------------------------------------------------------------------ [2008-08-04 23:14:49] dragos at codersnest dot com Description: ------------ When passing an integer to ctype_digit, it will fail validating it. I tested several times, looks like this behaviour is consistent, I also tried using ctype_digit(65) which will also return "false". The PHP version is actually 5.1.6, running on Fedora 6 x86_64 with Apache 2.2.6 , all installed from the Fedora Repository. Same behaviour successfully reproduced with PHP 5.2.5 + Apache 2.0.54 on Suse9 x86_64. Possibly somewhere when the parameter passed is cast to a string, the value is somehow corrupted. Reproduce code: --------------- function getm($width, $height) { $errors = array(); if (!ctype_digit($width) || (int)$width <=0 ) { $errors[] = 'Width must be a positive integer value, ' . gettype($width) . ' passed'; } if (!ctype_digit($height) || (int)$height<=0 ) { $errors[] = 'Height must be a positive integer value, ' . gettype($height) . ' passed'; } return $errors; } $a = getm(48, 65); var_dump($a); Expected result: ---------------- array (0) {} Actual result: -------------- array(1) { [0]=> string(55) "Height must be a positive integer value, integer passed" } ------------------------------------------------------------------------ -- Edit this bug report at http://bugs.php.net/?id=45710&edit=1