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Bug #19349 odbc_longreadlen() does not work
Submitted: 2002-09-10 20:33 UTC Modified: 2004-04-21 00:13 UTC
Votes:1
Avg. Score:5.0 ± 0.0
Reproduced:1 of 1 (100.0%)
Same Version:0 (0.0%)
Same OS:0 (0.0%)
From: truth at ichaos dot com Assigned:
Status: No Feedback Package: ODBC related
PHP Version: 4CVS, 5CVS OS: SuSE 8.0
Private report: No CVE-ID: None
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From: truth at ichaos dot com
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 [2002-09-10 20:33 UTC] truth at ichaos dot com
I am using PHP with ODBC (IBM DB2) support and since upgrading to 4.2.1 from 4.0.4pl1, my odbc_longreadlen() function no longer works. I have to set it in the configuration file now, as that is the only place that it works properly.

In addition, when it's set above 2000000 in the config file, httpd starts taking 75% of the CPU (system, not user) and the data never gets to PHP. Am I hitting some type of limitation? How else do I get my 10MB CLOB out of DB2?

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 [2002-09-11 10:27 UTC] truth at ichaos dot com
I have a script that runs a select statement from a 10MB CLOB field (among others). I run the following :

odbc_longreadlen($resultid, 3000000);

Then I run:

$document = odbc_result($resultid, 2);

The problem is, $document ends up with 4096 bytes of data (the default, NOT 3000000). If I edit php.ini and set up odbc_lrl to 2000000 in there, then $document ends up with 2MBin it. It acts like the function odbc_longreadlen does not work at all.

I don't know how much more information I can give other than odbc_longreadlen does not seem to do anything at all.
 [2002-11-02 14:51 UTC] kalowsky@php.net
can you please provide the full script sample for this?  I think I do see what is wrong, but want to make sure.
 [2002-11-16 12:06 UTC] truth at ichaos dot com
Script is pretty simple. It's hard to just cut and paste because I have everything spread out in a bunch of classes.

$linkid = odbc_pconnect("database", "username", "password");
$result = odbc_exec($linkid, "SELECT SUBSTR(document, 1, 2000000) FROM documents WHERE doc_id = 1);
odbc_longreadlen($result, 2000000);
odbc_binmode($result, ODBC_BINMODE_PASSTHRU);
$column = odbc_result($result, 1);

// A short example of what I'm trying to do.
// $column should be filled with up to 2000000 bytes of data.
// By default, it's up to 4096 bytes of data, or whatever is
// set in the php.ini file.
 [2004-04-21 00:13 UTC] iliaa@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.


 
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