关于中文乱码的问题：
SELECT * FROM Nls_Database_Parameters
NLS_NCHAR_CHARACTERSET
NLS_CHARACTERSET  AL32UTF8
NLS_DATE_FORMAT DD-MON-RR
NLS_NCHAR_CHARACTERSET  UTF8

select Userenv('language')  from dual
AMERICAN_AMERICA.AL32UTF8
AMERICAN_AMERICA.AL32UTF8

最后方案：

在cmd里加set NLS_LANG=American_America.ZHS16GBK
或在环境里配NLS_LANG


<?php

error_reporting(0);

//$str1="王军";
//$str=iconv('utf-8','gb2312', $str1);
//echo $str;



require_once('adodb/adodb.inc.php');

$conn = NewADOConnection('oci8');
//$conn->debug = true;
$conn->connect('192.168.80.18', ' ', ' ', 'enti  ');
$conn->charSet ='utf-8';
$conn->SetFetchMode(ADODB_FETCH_ASSOC);
//$db->Execute("set names {$config->site_charset}");
//$sql="select Userenv('language')  from dual";
//$table=$conn->getAll($sql);
//var_dump($table);

$sql="select
ROLEID, ROLE_NAME, ROLE_DESC, REMARK, DATA_VALID, MODIFY_USERID, MODIFY_DATETIME
from entiredba.bs_role";

$table=$conn->getAll($sql);
//$str=var_export($table[1],true);
//echo $str;


$mes = NewADOConnection('mysqli');
$mes->Connect("192.168.80.11", " ", " @!", "wes");
$mes->Execute("set names gbk");

foreach($table as $line){
        $sql="delete from entiredba.bs_role where ROLEID='".$line["ROLEID"]."' limit 1";
        $rst=$mes->execute($sql);
        if($rst){
                                //
        }else{
                echo($mes->ErrorMsg());
        }
       
        $emp="'".$line["MODIFY_USERID"]."'";
        if(strlen($line["MODIFY_USERID"])<2){
                $emp="null";
        }
        $ROLE_DESC=$line["ROLE_DESC"];
        $ROLE_DESC=str_replace("'"," ",$ROLE_DESC);
        $REMARK=$line["REMARK"];
        $REMARK=str_replace("'"," ",$REMARK);
        $sql="INSERT INTO entiredba.bs_role(ROLEID, ROLE_NAME, ROLE_DESC, REMARK, DATA_VALID, MODIFY_USERID, MODIFY_DATETIME) VALUES ('".$line["ROLEID"]."', '".$line["ROLE_NAME"]."', '".$ROLE_DESC."','".$REMARK."','".$line["DATA_VALID"]."', {$emp}, now())";
        $rst=$mes->execute($sql);
        if($rst){
                        echo ".";
        }else{
                echo($mes->ErrorMsg());
        }
       

}