#29023 [Csd->Opn]: fread() only reads 8192 bytes from a local file

ID: 29023 Updated by: lsmith@php.net Reported By: benjcarson at digitaljunkies dot ca -Status: Closed +Status: Open Bug Type: Filesystem function related Operating System: Linux PHP Version: 5CVS-2004-07-05 (dev) Assigned To: wez New Comment: I think there are a couple dupes (#32810, #32469, maybe even #30441) of this one. And on a recent win head snapshot it was still broken: php5-win32-200505191430 Previous Comments: ------------------------------------------------------------------------ [2004-07-10 12:57:28] wez@php.net This bug has been fixed in CVS. Snapshots of the sources are packaged every three hours; this change will be in the next snapshot. You can grab the snapshot at http://snaps.php.net/. Thank you for the report, and for helping us make PHP better. ------------------------------------------------------------------------ [2004-07-06 16:42:38] benjcarson at digitaljunkies dot ca While I realize that file_get_contents() is faster, the code that lead me to this bug was not my own. It was Smarty (2.6.2, although 2.6.3 has the same problem), which has worked very well with PHP5 until now. ------------------------------------------------------------------------ [2004-07-06 15:26:51] sniper@php.net I really can't see how this can be CORRECT behaviour as this has worked (like it says in docs too :) before just fine. OTOH, you should always use file_get_contents() instead anyway. :) ------------------------------------------------------------------------ [2004-07-06 09:14:52] derick@php.net Assigning to Wez... although I'd say that this is *correct* behavior, it shouldn't cause a BC break. ------------------------------------------------------------------------ [2004-07-05 22:28:48] benjcarson at digitaljunkies dot ca Description: ------------ In the latest cvs snap, fread() does not read more than 8192 bytes from a local file, despite specifying a larger read size as the second parameter. If the fread() call is wrapped in a while (!feof) loop the file can be read correctly, but only 8k at a time. This contradicts the first example in the manual (http://www.php.net/manual/en/function.fread.php) and is a BC break. As far as I can tell the change was made sometime between the 2004-06-22 snap and the 2004-07-04 snap. I've tested both using my php.ini file and without (i.e. using the built-in defaults). I configured using the following command: ./configure --prefix=/usr --with-apxs=/usr/bin/apxs \ --enable-memory-limit \ --with-layout-GNU\ --enable-bcmath \ --enable-calendar \ --with-curl=/usr \ --enable-exif \ --enable-ftp \ --enable-mbstring \ --enable-shmop \ --enable-sockets \ --enable-sysvsem \ --enable-sysvshm \ --enable-wddx \ --with-bz2 \ --with-config-file-path=/etc/php5/apache \ --with-gd=/usr \ --with-freetype-dir=shared,/usr \ --with-jpeg-dir=/usr \ --with-png-dir=shared,/usr \ --with-ttf=shared,/usr \ --with-xpm-dir=shared,/usr/X11R6 \ --with-gettext \ --with-kerberos=/usr \ --with-ldap=shared,/usr \ --with-mhash=shared,/usr \ --with-mm \ --with-ncurses=/usr \ --with-openssl=/usr \ --with-pcre-regex=/usr \ --with-pear \ --with-pgsql \ --with-pspell=/usr \ --with-zlib \ --with-zlib-dir=/usr Reproduce code: --------------- #!/usr/bin/php <?php $filename = "/some/largish/local/file"; $fd = fopen($filename, 'r'); $contents = fread($fd, filesize($filename)); echo strlen($contents) ."\n"; fclose($fd); ?> Expected result: ---------------- (the file's actual size, in bytes) Actual result: -------------- 8192 ------------------------------------------------------------------------ -- Edit this bug report at http://bugs.php.net/?id=29023&edit=1