PHP - REALIZAR CONSULTA MSSQL CON PHP Y GUARDAR RESULTADO EN FICHERO DE TEXTO

if($fh = fopen('text.txt','w')){

    $txt = json_encode($rows);

    fwrite($fh, $txt);

    fclose($fh);

}

<?php

//Consulta de cintas a SACAR del Robot

$consulta = "select [barcode]

		,[media_pool]

		,[expiration_date]

		,[location_type]

        ,[location_number]

		FROM [VeeamBackup].[dbo].[Tape.report_media_changes] 

		where ([expiration_date] > GETDATE()) AND [location_type]='1' OR [location_type]='0' AND [barcode]<>'000110'

		order by [media_pool],[barcode]";

$querySACAR = sqlsrv_query($conn, $consulta);

$outputSACAR= array();

while ($fila = sqlsrv_fetch_array($querySACAR)){

			array_push($outputSACAR, array('barcode' => $fila['barcode'], 'media_pool' => $fila['media_pool'], 'location_type' => $fila['location_type'], 'location_number' => $fila['location_number']));

	//Defino variable para cambio de nombre en el campo ubicación

	$ubicacion_nombre = array('0' => 'Drive' , '1' => 'Load' );

	//Creo un fichero de texto con JSON de la consulta para luego recorrerlo

	if($fh = fopen('outputSACAR.txt','w')){

		$txt = json_encode($outputSACAR);

		fwrite($fh, $txt);

		fclose($fh);

	}

}

?>