Bug #16689 Updated: bzread has no reliable way of detecting eof
| From: | joshbuddy at hotmail dot com | Date: | Sat, 20 Apr 2002 03:32:41 +0000 |
| Subject: | Bug #16689 Updated: bzread has no reliable way of detecting eof | ||
| References: | 1 | Groups: | php.bugs |
| Request: | Send a blank email to php-bugs+get-5441@lists.php.net to get a copy of this message | ||
ID: 16689
Updated by: joshbuddy@hotmail.com
Reported By: joshbuddy@hotmail.com
-Status: Closed
+Status: Open
Bug Type: Bzip2 Related
-Operating System:
+Operating System: win32
PHP Version: 4.1.2
New Comment:
this does not work on win32. bzread gives back a string of \0 as long
as the bzread requested...
and in php "\0\0\0" != false
i'm going to reopen and mark it as a win32 bug until there is
confirmation.. good luck.
Previous Comments:
------------------------------------------------------------------------
[2002-04-18 18:41:09] wez@php.net
Err, scratch that last comment; the only way to detect eof
for bzip streams is to keep reading it.
feof will always return false for bz2.
Your bzread or fread call should return false when no more data can be
read.
while(($string = bzread($bzfile, 4096)) !== false) {
...
}
should do what you want.
------------------------------------------------------------------------
[2002-04-18 18:35:27] wez@php.net
Try a recent CVS snapshot; you can now use feof on bz handles.
Reopen this report if it doesn't work for you :-)
------------------------------------------------------------------------
[2002-04-18 17:29:05] joshbuddy@hotmail.com
obviously feof will not work on a Bz file handle (though it would be
nice if it did)
the only way i could find it detect the end in a loop (where you would
be slurping in the whole file) is:
// open the file ... $bzfile
$data="";
$string=bzread($bzfile,4096);
while ($string!=str_repeat("\0",4096)) {
$data.=$string;
$string=bzread($bzfile,4096);
}
a better mechanism for eof detection is needed
------------------------------------------------------------------------
--
Edit this bug report at http://bugs.php.net/?id=16689&edit=1