php查询Oracle 数据

<?php 
$db_server = "localhost";
$db_user = "TPARK";
$db_pass = "123456";
$db_sid = "atyu30";
$dbconn=oci_connect($db_user,$db_pass,"(DEscriptION=(ADDRESS=(PROTOCOL =TCP)(HOST=127.0.0.1)(PORT = 1521))(CONNECT_DATA =(SID=$db_sid)))"); 
?>




<?php 
include_once("config.php");
/*
if($dbconn!=false) 
{ 
echo "连接"; 
echo "DB服务器:".$db_server;
echo "用户:".$db_user;
echo "口令:".$db_pass;
echo "SID:".$db_sid;
echo "成功\n";

if(OCILogOff($dbconn)==true) 
    { 
    echo "关闭连接成功!";//=这里有问题 
    } 
} 
else 
{ 
echo "连接失败"; 
} 
*/

$sql = "select * from editor";
$oci_rs = oci_parse($dbconn,$sql);
oci_execute($oci_rs,OCI_DEFAULT);
while($row=oci_fetch_array($oci_rs,OCI_ASSOC)) {
    print_r($row);
}
?>