memory leak size relate with value of the field, it also increase along with running times

could you plz replace  
$result = OCIResult($stmt, "clob_fldname"); 
if (is_object ($result)) $result = $result->load(); 
against: 
ocifetchinto($stmt, $arr,OCI_ASSOC); 
$result = $arr["CLOB_FLDNAME"]->load(); 
 
as this is the code i use all the time and it doesn't 
(seem) to leak for me. 
 

In fact, I tried to use following codes:

ocifetchinto($stmt, $arr,OCI_ASSOC); 
$result = $arr["CLOB_FLDNAME"]->load(); 

but it always cause memory leak on Windows system. It doesn't cause memory leak on Linux system.

By the way, running environment is:
Windows XP
Apache 1.3.26
PHP 4.3.3
Oracle 8.1.7

I am looking forward to reply.

sorry, if the leak does not show on unix there's not much 
i can do as i don't run windows. 
 
can you compile a debug-build and see if php actually 
complains about mem-leaks? 
 

I'm not able to compile a debug-build, but it's undoubted that the function cause memory leak. Please help me as soon as possible.

I am looking forward to reply. Thank you very much.

I had a try to run the following code on windows and linux, it cause memory leak on both platform. The size of memory leak depends on the size of CLOB-field's value and record count.
<?php

$conn = ocilogon("username","password","sid");
$query = "SELECT CLOB_FldName FROM tablename";
$stmt = OCIParse ($conn, $query);
OCIExecute($stmt);
while(ocifetchinto($stmt, $arr,OCI_ASSOC)){ 
  $result = $arr["CLOB_FldName"]->load(); 
  ecco $result;
}
?>

You can find debug enabled win32 builds here:

   http://www.thebrainroom.net/php-snaps

And do answer Thies' question: Does _PHP_ report any leaks when compiled with --enable-debug (on linux)

when I replaced ORACLE 8.1.7 against ORACLE 9.2, the situation disappeared.

fixed by upgradeing oracle (see last comment of 
reporter)