====== isConnected =====
<WRAP right box>
== Syntax ==
  bool isConnected()
</WRAP>
This function tests if a database connection has been established or not. You can use this to provide a controlled response to connection failure. The result of this function is either false, or the connectionId of the database if connected (==true)

==== Usage ====
<code php>
$conn = @connect($database,$user,$password);

if (!$conn->isConnected())
    /*
     * fail gracefully
     * /
</code>