Description:
------------
I have a problem when I use the INSERT operation like that.

It seems this is leaking memory.
So I try to import a big file using the INSERTs and I have a memory overflow error.

Reproduce code:
---------------
<?php
print "PHP Stress Test!\n";

$conn = oci_connect('scott', 'tiger', 'xxxxx');

for ($i = 1; $i < 1000; $i++) {
if ($i % 100 == 0) print "#$i: " . memory_get_usage() . "\n";

$s = oci_parse($conn, "INSERT INTO TBL VALUES ($i, $i)");
oci_execute($s);
oci_free_statement($s);
}

?>


Expected result:
----------------
#100: 51196
#200: 59196
#300: 67196
#400: 75196
#500: 83196
#600: 89520
#700: 89772
#800: 90044
#900: 90296

First column is count of INSERTs, second's a memory use.
So it seems that's leaking memory.