#26210 [Bgs]: CON, NUL, PRN... special files : is_file return true

ID: 26210 User updated by: iubito at asp-php dot net Reported By: iubito at asp-php dot net Status: Bogus Bug Type: *Directory/Filesystem functions Operating System: Windows (all) PHP Version: 4.3.3 New Comment: Sorry but the problem is serious, and I've found in the doc (just now, didn't found it before :p) filetype... ...BUT that doesn't solve the problem. If only I could test if my files are "file" type! with filetype($a_file_name) c:/ -> dir brass.mus -> file file_that_not_exist.foobar -> aux.* -> file nul.* -> file com1.* -> file Is filetype() function correct ??? Previous Comments: ------------------------------------------------------------------------ [2003-11-12 04:12:13] edink@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 . ------------------------------------------------------------------------ [2003-11-12 00:18:04] iubito at asp-php dot net Description: ------------ Hello As we often forget that Windows is based on DOS... we forget that in DOS it exists special file (CON, NUL, PRN, LPT1, LPT2, AUX, COM1, COM2, COM3, COM4). Under DOS, echo foobar > nul nul is considered as a file. Now in Windows Explorer, if you try to create a file called aux.<the_extension_you_want> or nul.bmp or prn.zip or lpt2.php... Windows return an error, something like "Impossible to create nul.bmp, a file with this name already exists..." That shows us that windows consider aux.* nul.* con.* as files. Now here I want to go... All functions like is_directory, is_file, file_exists... should return false. Since today, it ask windows "does the file nul.bmp exist ?" and Windows answer "yes!". But this file is not openable, writeable, readable. Reproduce code: --------------- <? $bugfile = 'c:/nul.gif'; // or aux.* or con.*.... if (is_file($bugfile)) echo $bugfile.' exists! <img src="'.$bugfile.'" />'; else echo $bugfile.' doesn\'t exist!'; // Now is a more problematic case I've seen in my app $inc = 'aux.php'; // the name is generated automatically... if (is_file('mydirectory/'.$inc)) { include('mydirectory/'.$inc); } ?> Expected result: ---------------- c:/nul.gif doesn't exist! Actual result: -------------- c:/nul.gif exists <img src="c:/nul.gif" /> <-- that's a red cross! Warning: main(PHPmyBrowserCustom/addon-file/AUX.php): failed to open stream: No such file or directory in F:\www\pays\flags\PHPmyBrowser\main.php on line 587 Fatal error: main(): Failed opening required 'PHPmyBrowserCustom/addon-file/AUX.php' (include_path='.;c:\php4\pear') in F:\www\pays\flags\PHPmyBrowser\main.php on line 587 ------------------------------------------------------------------------ -- Edit this bug report at http://bugs.php.net/?id=26210&edit=1