#28260 [Opn->Bgs]: readfile + session_start results in huge memory consumption
| From: | iliaa@php.net | Date: | Tue, 11 May 2004 18:26:41 +0000 |
| Subject: | #28260 [Opn->Bgs]: readfile + session_start results in huge memory consumption | ||
| References: | 1 | Groups: | php.bugs |
| Request: | Send a blank email to php-bugs+get-59513@lists.php.net to get a copy of this message | ||
ID: 28260
Updated by: iliaa@php.net
Reported By: mb at diderot dot de
-Status: Open
+Status: Bogus
Bug Type: Session related
Operating System: Linux
PHP Version: 4.3.6
New Comment:
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
When using buffer, data inside the buffer will not be freed
right away.
Previous Comments:
------------------------------------------------------------------------
[2004-05-11 17:50:05] mb at diderot dot de
I used flush() to prevent buffering. What surprises me is that it works
in php5 without settings.
------------------------------------------------------------------------
[2004-05-10 20:13:04] iliaa@php.net
Are you sure you don't have output buffering of any sort
enabled?
------------------------------------------------------------------------
[2004-05-03 16:05:07] mb at diderot dot de
With php5 this just works fine ;)
------------------------------------------------------------------------
[2004-05-03 15:16:58] mb at diderot dot de
Description:
------------
When using readfile or fread in combination with
session_start php seems to allocate memory for the whole
filesize. Without session_start it doesn't.
Replacing readfile by a fread loop doesn't make any
difference.
Reproduce code:
---------------
<?php
//error appears:
session_start();
readfile('big.zip'); //big.zip > memory_limit
?>
<?php
//working fine:
readfile('big.zip'); //big.zip > memory_limit
?>
<?php
//fread version, same error
session_start();
$fp = fopen('big.zip');
while($d = fread($fp,4096)) {
echo $d;
flush();
}
?>
Expected result:
----------------
Memory consumation should stay much bellow the whole
filesize as it does without sessions.
Actual result:
--------------
apache error.log:
Allowed memory size of 16777216 bytes exhausted (tried to
allocate 138188800 bytes)
------------------------------------------------------------------------
--
Edit this bug report at http://bugs.php.net/?id=28260&edit=1