Update readme sample (#357)

* Updating readme sample

* Update README.md

README.md

@@ -297,6 +297,9 @@ Navigate to `/var/www/html` (`/usr/local/var/www/htdocs` on Mac) and create a ne
     );
     //Establishes the connection
     $conn = sqlsrv_connect( $serverName, $connectionOptions );
+    if( $conn === false ) {
+        die( FormatErrors( sqlsrv_errors()));
+    }
     //Select Query
     $tsql= "SELECT @@Version as SQL_VERSION";
     //Executes the query