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Bug #16244 nvarchar fields do not return properly with sybase_fetch_*()
Submitted: 2002-03-24 10:52 UTC Modified: 2002-11-21 17:05 UTC
Votes:7
Avg. Score:4.7 ± 0.7
Reproduced:7 of 7 (100.0%)
Same Version:4 (57.1%)
Same OS:3 (42.9%)
From: nick at loman dot net Assigned:
Status: No Feedback Package: Sybase (dblib) related
PHP Version: 4.1.2 OS: Redhat Linux 7.2
Private report: No CVE-ID: None
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From: nick at loman dot net
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 [2002-03-24 10:52 UTC] nick at loman dot net 
When accessing a Microsoft SQL Server 2000 database using the sybase access libraries and FreeTDS 0.53 running in TDS 7.0 mode, fields of type 'nvarchar' do not appear the same as they do in the database. Usually there are trailing characters from previous rows which have already been fetched, pointing to a null-terminator/string length issue.

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 [2002-06-10 04:26 UTC] franck at sopac dot org 
In fact php make a mistake on the length of the text buffer vs the number of characters.
In a unicode string there are 2 bytes per characters. PHP thinks that the number is the number of characters...
For instance the SQL network dump show the record as:
00d1 0400 "A"00 "R"00
and php takes 0400 as the number of characters instead of the number of bytes and then report:
"AR  " instead of "AR"
It is to be expected that this bug is on all unicode types...
I use MS-SQL7.0 freetds0.53 snapshot the sybase-php code (not sybase-ct) and on Mandrake 8.2.
 [2002-11-06 09:54 UTC] iliaa@php.net 
Please try using this CVS snapshot:

  http://snaps.php.net/php4-latest.tar.gz
 
For Windows:
 
  http://snaps.php.net/win32/php4-win32-latest.zip
 [2002-11-21 17:05 UTC] sniper@php.net 
No feedback was provided. The bug is being suspended because
we assume that you are no longer experiencing the problem.
If this is not the case and you are able to provide the
information that was requested earlier, please do so and
change the status of the bug back to "Open". Thank you.
 [2005-05-29 22:22 UTC] freddyz77 at tin dot it 
FreeTDS do not support well nvarchar, use a recent version (0.53 is 4 year old)
 
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