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foreach ($roles as $k=>$row){
                            //2014.3.31 filter roles
                             if(!in_array($row, $uall_roles)){ die('access violation error!');}

if (!empty($type) && $type=='single') {//单个邮件发送
			if (empty($user_email)) {
				 echo "<script>alert('".__("Enter Username please")."');history.go(-1);</script>";
                exit;
			}
			if (strstr($user_email,'|')) {//如果是多个用户
				$users = explode('|',$user_email); 
				foreach ($users as $u){
					$sql = "select id,email,login from ".Config::$tbl_prefix."users where login='".$u."'";
					
			    	$res = $db->query($sql);
			    	$eml = $res->fetchRow();