Description:
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Dozens of connection threads are being created in oracle. They aren't being removed.

Using Oracle 9, Apache 2 

Reproduce code:
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$link = dbx_connect ("oci8","","db","username","password")				or die("Can't connect");


$result = dbx_close($link) or die ("Can't close");

Expected result:
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Nothing, no die messages reported.

Actual result:
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"Can't close"