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Test MSSQL Connection PHP

AncientFrib asked
Last Modified: 2012-05-11

I am looking for an effective and fast method of checking the availability of an MSSQL db within PHP.  Presently I am using the attached code to connect to the db.

If $conn returns false then I display an error.  The problem is that often times this will time out or delay for a long period of time before reaching a false value.  As a result I get inconsistent behavior.

How can I quickly check to see if the DB server is up and if not, display a message to the user and exit the code.
$connectioninfo = array("UID"=>$username,"PWD"=>$pw,"Database"=>$db,"ReturnDatesAsStrings"=> true);
$conn = sqlsrv_connect( $servername, $connectioninfo);

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