Steve-

do a 
$returnCode =  system("tnsping".hostname);

read the returnCode for "ok" to determine listener is up

HTH
Martin Gainty 
DBA/Programming Instructor 
Meet the new Boss..Same as the Old Boss - Roger Daltrey
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> Subject: Checking status of a DB handle
> Date: Fri, 7 Nov 2008 14:29:48 -0500
> From: [EMAIL PROTECTED]
> To: [email protected]
> 
> I'd like to be able to check to see if a DB connection is still alive,
> without sending a command to the connected server. To make it more
> complicated, I'd like it to work with Sybase, MySQL, and, if possible,
> Oracle.
> 
> Is there any way to do this?
> 
> 
> Steve Wechsler | [EMAIL PROTECTED]
> Sybase/SQL Server/MySQL Database Administrator
> 212-846-5683
> 
> MTV Networks
> 
> 

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