#19886 [Opn->Fbk]: readfile, fread, fpassthru won't work with large files!!!

ID: 19886 Updated by: wez@php.net Reported By: spic@php.net -Status: Open +Status: Feedback Bug Type: Filesystem function related Operating System: Windows, any Version PHP Version: 4CVS-2002-10-13 New Comment: Thank you for this bug report. To properly diagnose the problem, we need a backtrace to see what is happening behind the scenes. To find out how to generate a backtrace, please read http://bugs.php.net/bugs-generating-backtrace.php Once you have generated a backtrace, please submit it to this bug report and change the status back to "Open". Thank you for helping us make PHP better. Previous Comments: ------------------------------------------------------------------------ [2002-10-31 07:01:23] spic@php.net The problem can be reproduced using Apache/Win32 using the script posted at 13 Oct 10:19am. I tried the newest snapshot (31-Oct-2002 03:28). Furthermore, the previous snaps and different release versions (>4.2.2) don't work. I deleted versions < 4.2.1, so I can't test them any more. ------------------------------------------------------------------------ [2002-10-31 05:17:56] harbater@teamgenesis.com I'm experiencing something similar on Linux Apache using Version 4.1.2. As far as I know it worked before I upgraded from an earlier version. My code looks like this: $file="/path/to/file"; $fp = fopen($file, "r"); $size=filesize($file); $contents = fread($fp, $size); fclose($fp); Header("Content-Type: $type"); Header("Content-Disposition: attachment; filename=$downloadname"); header("Content-Length: $size"); header("Content-Transfer-Encoding: binary"); echo $contents; filesize() is reporting the size properly. The code works perfectly for smaller files, but the fread() fails for files larger than 19 MB or so and I got a page cannot be displayed error. All the files being downloaded are PDF files. ------------------------------------------------------------------------ [2002-10-31 04:34:57] selfman@lasercat.de None of them has been used (output buffering or ob_gzhandler, or zlib.output_compression or transparent SID/session rewriting). The fopen() -> $val = fread()-> echo $val worked fine. The response was much quicker. Never minad... I have solved the problem otherwise. And the data have moved to a differen server with higher capacity. Regards SelfMan ------------------------------------------------------------------------ [2002-10-29 19:13:28] wez@php.net and did you try the most recent snapshot as I suggested on the 13 Oct? And could you reproduce the issue using a different web server? ------------------------------------------------------------------------ [2002-10-29 16:14:28] spic@php.net For me, I dont have output buffering or ob_gzhandler, or zlib.output_compression or transparent SID/session rewriting enabled. I tested even a max execution time of a day. ------------------------------------------------------------------------ The remainder of the comments for this report are too long. To view the rest of the comments, please view the bug report online at http://bugs.php.net/19886 -- Edit this bug report at http://bugs.php.net/?id=19886&edit=1