$server = "serverName\sqlexpress, 1542"; //serverName\instanceName, portNumber (default is 1433) $connectionInfo = array( "Database"=>"dbName", "UID"=>"userName", "PWD"=>"password"); $conn = sqlsrv_connect( $server, $connectionInfo); if( $conn ) { echo "Connection established successfully"; }else{ echo "Connection failed."; die( print_r( sqlsrv_errors(), true)); }