Oracle Temp Table and PHP

$sql0 = "CREATE GLOBAL TEMPORARY TABLE TMP".$subnum."
(GROUPID VARCHAR2(8))";


$sql1 = "INSERT INTO TMP".$subnum." (SELECT DISTINCT GROUPID FROM TAB_COLOR_PRODUCT
WHERE PRODUCTID IN (SELECT GROUPID
FROM TAB_COLOR_SUBGROUP
WHERE SUBNUM = '".$subnum."'
AND UNITNUM = '".$unitnum."' )
AND GROUPID LIKE '06%')";


$sql2 = "SELECT a.SEGMENT, b.DESCRIPTION, a.MENU_POS, a.SEG_ORDER FROM TAB_COLOR_SEGMENT A,
TAB_COLOR_DEFS B WHERE b.ID = a.SEGMENT AND a.SEGMENT IN ((SELECT GROUPID
FROM TMP".$subnum.")
MINUS
SELECT DISTINCT b.PAGEMBR FROM TAB_COLOR_LPN a, TAB_COLOR_PAGEMBR b WHERE
                       a.SEGMENT IN (SELECT GROUPID FROM TMP".$subnum.")
                       AND b.LPN = a.LPN
                       AND b.PGMBR_ORDER = '001'
                       AND b.PAGEMBR IN (SELECT GROUPID FROM TMP".$subnum.")
 )
ORDER BY MENU_POS, SEG_ORDER";


$sql3 = "DROP TABLE TMP".$subnum;


$cursor = OCILogon($user, $pass, $tns);
  if ( ! $cursor ) {
    echo "Unable to connect: " . var_dump( OCIError() );
    die();
  }

// CREATE TEMP TABLE
$createTMP = OCIParse($cursor, $sql0);
OCIExecute($createTMP, OCI_DEFAULT);

// INSERT DATA INTO TEMP TABLE
$insrtTMP = OCIParse($cursor, $sql1);
OCIExecute($insrtTMP, OCI_DEFAULT);

// SELECT DATA
$slctDATA = OCIParse($cursor, $sql2);
OCIExecute($slctDATA, OCI_DEFAULT);
//-------------------------------------------------------
while (OCIFetchInto($slctDATA, $row, OCI_ASSOC | OCI_RETURN_NULLS)){
	print $row['SEGMENT'].' '.$row['DESCRIPTION'].' '.$row['MENU_POS'].' '.$row['SEG_ORDER'].'<br>';
}
//-------------------------------------------------------
// DELETE TEMP TABLE
$deleteTMP = OCIParse($cursor, $sql3);
OCIExecute($deleteTMP, OCI_DEFAULT);

OCILogoff($cursor);