From: info at peterke dot tk
Operating system: WinXP (with and without) SP1
PHP version: 4.3.4
PHP Bug Type: MSSQL related
Bug description: No MSSQL-functions possible when working with cursors
Description:
------------
PHP seems to crash Apache 2 webserver when working with MSSQL-functions
and a MSSQL-CURSOR (I tried it without a MSSQL-function and that worked
perfect, I tried working with MSSQL-functions without a CURSOR, and that
worked perfect too). There are no traces of the crashing, only a windows
dialogbox and an error in the apache error.log
changes in php.ini:
error_reporting = E_ALL
display_startup_errors = On
log_errors = On
error_log = D:/www/error.log
doc_root = d:/www
extension=php_mssql.dll
mssql.datetimeconvert = Off
(php runs as a module)
Reproduce code:
---------------
$Link = mssql_connect("localhost","user","password");
mssql_select_db("database", $Link);
$Query = "DECLARE tmpCursor CURSOR SCROLL FOR SELECT CAST(myField AS
VARCHAR) FROM myTable
OPEN tmpCursor
FETCH LAST FROM tmpCursor
CLOSE tmpCursor
DEALLOCATE tmpCursor";
$Result = mssql_query($Query, $Link);
while (mssql_next_result($Result) == TRUE)
{
$row = mssql_fetch_row($Result);
print_r($row);
}
mssql_free_result($Result);
mssql_close($Link);
Expected result:
----------------
the last element from a cursor (in this case casted to a varchar, but
other functions like 'ROUND()' don't seem to work either)
Actual result:
--------------
Apache crashes with 'The instruction on 0x006f7e9e points to memory on
0x00000000. The read or write-instruction ("read") on the memory failed.'
in a windows dialog box. In the error.log (apache) is stated:
[Sun Mar 14 11:42:31 2004] [notice] Parent: child process exited with
status 3221225477 -- Restarting.
[Sun Mar 14 11:42:31 2004] [notice] Parent: Created child process 1640
[Sun Mar 14 11:42:31 2004] [notice] Child 1640: Child process is running
[Sun Mar 14 11:42:31 2004] [notice] Child 1640: Acquired the start mutex.
[Sun Mar 14 11:42:32 2004] [notice] Child 1640: Starting 250 worker
threads.
--
Edit bug report at http://bugs.php.net/?id=27594&edit=1
--
Try a CVS snapshot (php4): http://bugs.php.net/fix.php?id=27594&r=trysnapshot4
Try a CVS snapshot (php5): http://bugs.php.net/fix.php?id=27594&r=trysnapshot5
Fixed in CVS: http://bugs.php.net/fix.php?id=27594&r=fixedcvs
Fixed in release: http://bugs.php.net/fix.php?id=27594&r=alreadyfixed
Need backtrace: http://bugs.php.net/fix.php?id=27594&r=needtrace
Need Reproduce Script: http://bugs.php.net/fix.php?id=27594&r=needscript
Try newer version: http://bugs.php.net/fix.php?id=27594&r=oldversion
Not developer issue: http://bugs.php.net/fix.php?id=27594&r=support
Expected behavior: http://bugs.php.net/fix.php?id=27594&r=notwrong
Not enough info: http://bugs.php.net/fix.php?id=27594&r=notenoughinfo
Submitted twice: http://bugs.php.net/fix.php?id=27594&r=submittedtwice
register_globals: http://bugs.php.net/fix.php?id=27594&r=globals
PHP 3 support discontinued: http://bugs.php.net/fix.php?id=27594&r=php3
Daylight Savings: http://bugs.php.net/fix.php?id=27594&r=dst
IIS Stability: http://bugs.php.net/fix.php?id=27594&r=isapi
Install GNU Sed: http://bugs.php.net/fix.php?id=27594&r=gnused
Floating point limitations: http://bugs.php.net/fix.php?id=27594&r=float
