Description:
------------
Sorry, but I has not received an answers on
my submision: http://bugs.php.net/bug.php?id=30592
Maybe I was wrong to set "Type of Bug" ...

So I expect "correct" answers or other opinion
for received results.

The problem has been detected on:
   Slackware 10.0, MySQL 4.0.20, PHP 4.3.8, 4.3.9, 5.0.2
   RedHat 9, MySQL 3.23.58, PHP 4.3.9

Expected result has received on:
   Slackware 10.0, MySQL 4.0.20, PHP 4.3.6
   or when line
$db2 = 0;
   had been commented.

Reproduce code:
---------------
error_reporting(E_ALL);
$db1 = mysql_connect ('localhost', 'test', '1');
$db2 = mysql_connect ('localhost', 'test', '1');
mysql_close($db2);
$db2 = 0;
$result = mysql_query('SELECT 1+1', $db1);
if ($result)
{
    $row = mysql_fetch_row($result);
    echo "Result: {$row[0]}\n";
}


Expected result:
----------------
Result: 2


Actual result:
--------------
Warning: mysql_query(): 4 is not a valid MySQL-Link resource in ...
  $result = mysql_query('SELECT 1+1', $db1);