#19886 [Com]: readfile, fread, fpassthru won't work with large files!!!

ID: 19886 Comment by: harbater@teamgenesis.com Reported By: spic@php.net Status: Feedback Bug Type: Filesystem function related Operating System: Windows, any Version PHP Version: 4CVS-2002-10-13 New Comment: 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. Previous Comments: ------------------------------------------------------------------------ [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 $val worked fine. The response was much quicker. Never minad... I have solved the problem otherwise. And the data have moved to a differen server with higher capacity. Regards SelfMan ------------------------------------------------------------------------ [2002-10-29 19:13:28] wez@php.net and did you try the most recent snapshot as I suggested on the 13 Oct? And could you reproduce the issue using a different web server? ------------------------------------------------------------------------ [2002-10-29 16:14:28] spic@php.net For me, I dont have output buffering or ob_gzhandler, or zlib.output_compression or transparent SID/session rewriting enabled. I tested even a max execution time of a day. ------------------------------------------------------------------------ [2002-10-29 09:10:49] wez@php.net As a sanity check, you're not using output buffering or ob_gzhandler, or zlib.output_compression or transparent SID/session rewriting, are you? ------------------------------------------------------------------------ [2002-10-29 06:55:29] selfman@lasercat.de I have a simmilar problem on windows 2000 Server with IIS4. I use this script (just a part): header("Content-type: Download"); header("Content-Disposition: attachment; filename=".$Data->SWFileName); $fp = fopen ($GLOBALS['FileLocation'].$Data->SWFileName, "rb"); fpassthru($fp); The problem is that on our development machine (Linux) everything works like a charm, but on our "Production" server with Win2k Server & IIS not. There is a small JavaScript which calls the file sending script usimg window.location='getfile.php?fileid=56' The problem place is that the time between request and displaying the "save" dialog is very large. (1-2 minutes or so) I can't get it to execute faster. I will try to use the fread(). Later SelfMan ------------------------------------------------------------------------ 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