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Bug #27508 feof() broken for user-defined streams
Submitted: 2004-03-05 16:05 UTC Modified: 2005-08-18 16:32 UTC
Votes:13
Avg. Score:4.6 ± 0.7
Reproduced:10 of 11 (90.9%)
Same Version:4 (40.0%)
Same OS:7 (70.0%)
From: adam at trachtenberg dot com Assigned: wez (profile)
Status: Closed Package: Network related
PHP Version: 5CVS-2005-03-24 OS: *
Private report: No CVE-ID: None
 [2004-03-05 16:05 UTC] adam at trachtenberg dot com
Description:
------------
It looks like feof() doesn't work correctly in all cases 
for user-defined streams. It seems like the class 
stream_eof() method is not being called when feof() is 
invoked in PHP.

This works correctly using 4.3.5RC3, but not PHP 5 
current CVS. It also works correctly if I do an 
fpassthru() on the file pointer and let PHP handle the 
feof() check.

Reproduce code:
---------------
See VariableStream class in the manual: 

http://us2.php.net/manual/en/function.stream-wrapper-register.php

In particular the while(!feof()) bit.

Expected result:
----------------
line1
line2
line3
string(18) "line1
line2
line3
"

(This is what I get from PHP 4.3.5RC3)

Actual result:
--------------
string(18) "line1
line2
line3
"

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 [2004-03-09 08:47 UTC] sniper@php.net
Wez, the fix didn't quite fix it.

Adam, can you please come up with a test case and send it to internals@ ? (The one in manual is a bit long, could it be made any shorter?)

 [2004-03-09 11:31 UTC] adam at trachtenberg dot com
Here's an example where the class is just a wrapper 
around fopen(), fread(), fwrite(), etc.

It's at http://www.trachtenberg.com/patches/
bug27508.php.

In PHP 4, you get:

line1
line2
line3

PHP 5 outputs no data.
 [2004-03-09 11:32 UTC] adam at trachtenberg dot com
Oops. Wrong file extension. Should be: 

http://www.trachtenberg.com/patches/bug27508.txt
 [2005-05-11 04:02 UTC] 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.

Fixed in HEAD.
 [2005-08-18 16:32 UTC] lsmith@php.net
This bug will actually not be fixed in 5.0.x but instead will only be fixed in 5.1.x and above.

Please use version_compare() to handle this problem.
 
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