Passing clobs to stored procs

I'm trying to pass a clob to a stored procedure, but not having any luck. desc php_test PROCEDURE php_test Argument Name Type In/Out Default? ------------------------------ ----------------------- ------ -------- I_ID NUMBER IN I_TEXT CLOB IN Here's my code and the variants I tried: <? $Conn = OCINLogon ('xxx', 'xxx'); OCIInternalDebug (1); $Buffer = "hello there"; $Stmt = OCIParse ($Conn, 'begin php_test (1, :buffer); end;'); $Clob = OCINewDescriptor ($Conn, OCI_D_LOB); OCIBindByName ($Stmt, ':buffer', $Clob, -1, OCI_B_CLOB); $Clob->save ($Buffer); OCIExecute ($Stmt, OCI_DEFAULT); $Stmt = OCIParse ($Conn, 'begin php_test (2, :buffer); end;'); OCIBindByName ($Stmt, ':buffer', $Buffer); OCIExecute ($Stmt); $Stmt = OCIParse ($Conn, "select id, text from php_table"); OCIExecute ($Stmt); $rows = OCIFetchStatement ($Stmt, $rs); print_r ($rs); ?> output: OCIDebug: oci_parse "begin php_test (1, :buffer); end;" id=3 conn=2 OCIDebug: oci_new_desc 4 OCIDebug: OCIsavedesc: size=11 offset=1 Warning: OCILobWrite: OCI_INVALID_HANDLE in /disk/1/home/dbenson/htdocs/hack.php on line 9 Warning: OCIStmtExecute: ORA-22275: invalid LOB locator specified ORA-06512: at "VIGNETTE.PHP_TEST", line 4 ORA-06512: at line 1 in /disk/1/home/dbenson/htdocs/hack.php on line 10 OCIDebug: oci_parse "begin php_test (2, :buffer); end;" id=5 conn=2 Warning: OCIStmtExecute: ORA-06550: line 1, column 7: PLS-00306: wrong number or types of arguments in call to 'PHP_TEST' ORA-06550: line 1, column 7: PL/SQL: Statement ignored in /disk/1/home/dbenson/htdocs/hack.php on line 14 OCIDebug: oci_parse "select id, text from php_table" id=6 conn=2 OCIDebug: START _oci_stmt_list_dtor: id=3 last_query="begin php_test (1, :buffer); end;" OCIDebug: _oci_bind_hash_dtor: OCIDebug: END _oci_stmt_list_dtor: id=3 OCIDebug: oci_new_desc 7 OCIDebug: OCIloadlob: size=14 OCIDebug: START _oci_column_hash_dtor: ID OCIDebug: END _oci_column_hash_dtor: ID OCIDebug: START _oci_column_hash_dtor: TEXT OCIDebug: START _oci_descriptor_list_dtor: 7 OCIDebug: END _oci_descriptor_list_dtor: 7 OCIDebug: END _oci_column_hash_dtor: TEXT Array ( [ID] => Array ( [0] => 0 ) [TEXT] => Array ( [0] => this is a clob ) ) Any suggestions on where to go next? Thanks! David