From: superfelo at yahoo dot com
Operating system: Windows XP and 2003
PHP version: 5.2.2
PHP Bug Type: COM related
Bug description: Error in COM Object results
Description:
------------
As it is possible to see bellow, a COM Object is opened, then Data Base is
read by a Recordset and a OLE object is loaded in such Recordset.
Later, using a GetChunk which is a Recordset function a number of bytes in
OLE object is read but this function just result in the number of printable
characters and it discards or ignore for instance, byte 0 or any other not
printable character.
In the second example, it is possible to see a function to read 20 bytes
after a certain position. Now the problem is similar. The 20 bytes has been
counted by the results are just printable characters of such 20 bytes. So,
result is less than 20 character because not all 20 characters are
printable.
Reproduce code:
---------------
$engine = new COM("DAO.DBEngine.35");
$engine->SystemDB = "c:\system.mda";
$engine->defaultuser = "admin";
$engine->defaultpassword = "";
$db = $engine->OpenDataBase("c:\bd.mdb");
$sqlstr = "SELECT DISTINCTROW tabla1.* FROM tabla1;" ;
$rst = $db->OpenRecordset("RsConfig",$sqlstr);
echo $rst->Fields["Campo1"]->GetChunk(1,20);
//-------------------------------------------------
$mstream = new COM("ADODB.Stream");
$mstream->Type = 1; // 'adTypeBinary
$mstream->Open;
$mstream->Write($rst->Fields["Campo1"]->Value);
$mstream->position = 0;
echo $mstream->Read(20);
Expected result:
----------------
The actual number of bytes in a OLE object stored in a Recordset: This
number of bytes of course, must include printable and not printable
characters.
Actual result:
--------------
Just the number of printable characters.
--
Edit bug report at http://bugs.php.net/?id=41388&edit=1
--
Try a CVS snapshot (PHP 4.4):
http://bugs.php.net/fix.php?id=41388&r=trysnapshot44
Try a CVS snapshot (PHP 5.2):
http://bugs.php.net/fix.php?id=41388&r=trysnapshot52
Try a CVS snapshot (PHP 6.0):
http://bugs.php.net/fix.php?id=41388&r=trysnapshot60
Fixed in CVS: http://bugs.php.net/fix.php?id=41388&r=fixedcvs
Fixed in release:
http://bugs.php.net/fix.php?id=41388&r=alreadyfixed
Need backtrace: http://bugs.php.net/fix.php?id=41388&r=needtrace
Need Reproduce Script: http://bugs.php.net/fix.php?id=41388&r=needscript
Try newer version: http://bugs.php.net/fix.php?id=41388&r=oldversion
Not developer issue: http://bugs.php.net/fix.php?id=41388&r=support
Expected behavior: http://bugs.php.net/fix.php?id=41388&r=notwrong
Not enough info:
http://bugs.php.net/fix.php?id=41388&r=notenoughinfo
Submitted twice:
http://bugs.php.net/fix.php?id=41388&r=submittedtwice
register_globals: http://bugs.php.net/fix.php?id=41388&r=globals
PHP 3 support discontinued: http://bugs.php.net/fix.php?id=41388&r=php3
Daylight Savings: http://bugs.php.net/fix.php?id=41388&r=dst
IIS Stability: http://bugs.php.net/fix.php?id=41388&r=isapi
Install GNU Sed: http://bugs.php.net/fix.php?id=41388&r=gnused
Floating point limitations: http://bugs.php.net/fix.php?id=41388&r=float
No Zend Extensions: http://bugs.php.net/fix.php?id=41388&r=nozend
MySQL Configuration Error: http://bugs.php.net/fix.php?id=41388&r=mysqlcfg
