不包括所选的数据库

I have a project (exisiting) and I am ordered to continue it

but there's something strange

in my connection

<?php 

include "adodb5/adodb.inc.php";
$config['mysqlhost'] = 'localhost';
$config['mysqluser'] = 'xxx';
$config['mysqlpass'] = 'yyy';
$config['mysqldb'] = 'zzz';

$DB = ADONewConnection('mysql');
$DB->Connect($config['mysqlhost'],$config['mysqluser'],$config['mysqlpass'],$config['mysqldb'],true);

?>

and if I try to call query (same queries as below) from this page, it works (and when I echo, it shows the value)

So I go to other page

<?
    include ("inc/con.php");
?>

<?php 

$sql = ("SELECT * FROM table");
$query = mysql_query($sql)or die($myQuery."<br/><br/>".mysql_error());
$result = mysql_fetch_array($query);
echo $result ['table id'];

?>

and the result is

Notice: Undefined variable: myQuery in C:\xampp\htdocs\d88\www\mypage.php on line 9

No database selected

is there anything wrong with it? since i try on con page, it works and when i include it to other page, it not working

You are not defining any $myQuery either in inc/con.php nor in the same file itself. Also you are not selecting any database with mysql_select_db:

mysql_select_db($config['mysqldb']);

You are suggest, also, not to use mysql_* functions as they are going to be deleted and are yet deprecated (and you can use PDO or mysqli).

Notice: I think $sql = ("SELECT * FROM table") gets evaluated as $sql = true.

You can not connect with ADODB connection and establish a query with mysql_query. the syntax is something like this mysql_query ($query ,$con). $con is optional but if you do not specify it, the last link opened by mysql_connect() is assumed; but you have not any mysql_connect() statement before

because of my version of php, i must use <?php ?> instead of <? ?> thanks for helping