#48269 [Opn->Bgs]: Unexpected return in substr function with negative start parameter

ID: 48269 Updated by: jani@php.net Reported By: relo dot san at gmail dot com -Status: Open +Status: Bogus Bug Type: Scripting Engine problem Operating System: CentOS 5 PHP Version: 5.2.9 New Comment: Please do not submit the same bug more than once. An existing bug report already describes this very problem. Even if you feel that your issue is somewhat different, the resolution is likely to be the same. Thank you for your interest in PHP. See bug #47298 Previous Comments: ------------------------------------------------------------------------ [2009-05-13 20:47:23] relo dot san at gmail dot com Description: ------------ From manual: "If length is given and is positive, the string returned will contain at most length characters beginning from start (depending on the length of string). If string is less than or equal to start characters long, FALSE will be returned." This bug detected in PHP versions >= 5.2.8 Results on different versions and OS: PHP Version 5.2.5, Windows and linux: boolean: false PHP Version 5.2.8, CentOS: string(1) "1" PHP 5.2.8 (cli) (built: Feb 5 2009 21:21:13), MacOS: string(1) "1" PHP Version 5.2.9, CentOS: string(1) "1" Maby is mistake in manual and substr do not accept negative start param if string length less than start? Reproduce code: --------------- var_dump( substr( '1', -2, 1 ) ); Expected result: ---------------- boolean: false Actual result: -------------- string(1) "1" ------------------------------------------------------------------------ -- Edit this bug report at http://bugs.php.net/?id=48269&edit=1