From: michael dot virnstein at brodos dot de
Operating system:
PHP version: 5.2.5
PHP Bug Type: OCI8 related
Bug description: cursor not closed after leaving function when selecting lobs
Description:
------------
PHP 5.2.3 / 5.2.4 / 5.2.5
Apache 2.2.6
Oracle-DB 10.2.0.3.0
Oracle-Client 10.2.0.3
OS Linux
Usually, when leaving a function, php closes e.g. statements implicitly.
This works as long as a lob is selected. When a lob is selected, i have to
call oci_free_statement() explicitly on the statement, otherwise the cursor
is kept open and i have a dangling cursor. This issue can cause an
"ORA-01000: maximum open cursors exceeded".
Our db setting for open_cursors is 300, so every session is allowed to
have max 300 cursors open simultaneously. if i run the reproduce code
below, i get an ORA-01000
create the following table:
create table t_lobdata
(
id number not null,
data clob
);
fill table:
insert into t_lobdata
select rownum, object_name
from sys.all_objects;
Reproduce code:
---------------
<?php
$conn = ocilogon('user', 'pass', 'db');
function getLob($conn, $id)
{
$result = null;
$stmt = ociparse($conn, 'select id, data
from t_lobdata
where id = :id');
ocibindbyname($stmt, ':id', $id, -1);
ociexecute($stmt, OCI_DEFAULT);
ocifetchinto($stmt, $result, OCI_ASSOC+OCI_RETURN_LOBS);
return $result;
}
for ($id = 1; $id <= 300; $id++) {
$result = getLob($conn, $id);
}
?>
Expected result:
----------------
cursor gets closed implicitly when leaving the function
Actual result:
--------------
cursor isn't closed, which results in dangling cursors and an ORA-01000
--
Edit bug report at http://bugs.php.net/?id=43455&edit=1
--
Try a CVS snapshot (PHP 4.4):
http://bugs.php.net/fix.php?id=43455&r=trysnapshot44
Try a CVS snapshot (PHP 5.2):
http://bugs.php.net/fix.php?id=43455&r=trysnapshot52
Try a CVS snapshot (PHP 5.3):
http://bugs.php.net/fix.php?id=43455&r=trysnapshot53
Try a CVS snapshot (PHP 6.0):
http://bugs.php.net/fix.php?id=43455&r=trysnapshot60
Fixed in CVS: http://bugs.php.net/fix.php?id=43455&r=fixedcvs
Fixed in release:
http://bugs.php.net/fix.php?id=43455&r=alreadyfixed
Need backtrace: http://bugs.php.net/fix.php?id=43455&r=needtrace
Need Reproduce Script: http://bugs.php.net/fix.php?id=43455&r=needscript
Try newer version: http://bugs.php.net/fix.php?id=43455&r=oldversion
Not developer issue: http://bugs.php.net/fix.php?id=43455&r=support
Expected behavior: http://bugs.php.net/fix.php?id=43455&r=notwrong
Not enough info:
http://bugs.php.net/fix.php?id=43455&r=notenoughinfo
Submitted twice:
http://bugs.php.net/fix.php?id=43455&r=submittedtwice
register_globals: http://bugs.php.net/fix.php?id=43455&r=globals
PHP 3 support discontinued: http://bugs.php.net/fix.php?id=43455&r=php3
Daylight Savings: http://bugs.php.net/fix.php?id=43455&r=dst
IIS Stability: http://bugs.php.net/fix.php?id=43455&r=isapi
Install GNU Sed: http://bugs.php.net/fix.php?id=43455&r=gnused
Floating point limitations: http://bugs.php.net/fix.php?id=43455&r=float
No Zend Extensions: http://bugs.php.net/fix.php?id=43455&r=nozend
MySQL Configuration Error: http://bugs.php.net/fix.php?id=43455&r=mysqlcfg
