[PHP] OCINewcollection fails after being used more then once

["Andries J. Algera" <aalgera@ibama.gov.br>]

I am trying to use the ocicollection functions. Initially everything
works fine, but after reloading the page for the second time 
I get the following error: 

OCITypeByName: OCI-22303: type "SISTRUT"."MENSERRO" not found

When I try half a minute later, I do manage reload the page without any
error. I'm using php-4.2.2 on solaris 2.6 as a module of apache_1.3.26. 

The php-code I used for this test follows:

<?
        $conn = OCILogon("scott","tiger","db");

        $sql = "BEGIN :SAIDA := SISTRUT.PK_UF.SEL(:CURSOR,:COD_UF); END;";
        $stmt = OCIParse($conn, $sql);

        OCIBindByName($stmt,':COD_UF',&$cod_uf,32);

        $saidacoll = OCINewCollection($conn,"MENSERRO","SISTRUT");

        OCIBindByName($stmt,':SAIDA',&$saidacoll,-1,OCI_B_SQLT_NTY);

        $curs = OCINewCursor($conn);
        OCIBindByName($stmt,":CURSOR",$curs,-1,OCI_B_CURSOR);
        OCIExecute($stmt);

        $nmenserro = ocicollsize($saidacoll);
        for ($i = 0; $i < $nmenserro; $i++)
            $saida[]= $ocicollgetelem($saidacoll,$i);
        ocifreecollection($saidacol);

        if ( !$nmenserro ) {
            OCIExecute($curs);
            while (OCIFetchinto($curs,$r,OCI_ASSOC+OCI_RETURN_NULLS)) {
                foreach ( $r as $k=>$v )
                    print "$v ";
                print "<br>\n";
            }
        }
        ocifreecursor($curs);
?>

the PL/SQL code for the function:

create or replace type menserro is varray(20) of varchar2(100);

function sel(p_cursor out ufcurtyp, p_cod_uf in uf.cod_uf%type
                   ) return menserro is
  v_sql varchar2(200);
  v_menserro menserro := menserro();
begin
    v_sql := 'select * from uf';
    if p_cod_uf is not null then
      v_sql := v_sql || ' where cod_uf='''|| p_cod_uf || '''';
    end if;
    v_sql := v_sql || ' order by nom_uf';
    open p_cursor for v_sql;
    return null;
  
  exception
    when others then
      begin
          v_menserro.extend;
          v_menserro(v_menserro.count) := 'Erro na execução do select';
          return v_menserro;
      end;
end sel;



--------------------------------------------------------------------
Andries Algera
CSR - IBAMA
SAIN L4, Lote 4, Ed. IBAMA Sede
70800.200  Brasilia / DF
BRASIL
ph: +5561 316-1326
          316-1453
fax:+5561 223-7108
--------------------------------------------------------------------


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